{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T12:59:53Z","timestamp":1790600393392,"version":"4.1.0"},"reference-count":128,"publisher":"American Chemical Society (ACS)","issue":"9","license":[{"start":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T00:00:00Z","timestamp":1786579200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100006734","name":"Princeton University","doi-asserted-by":"publisher","award":["NA"],"award-info":[{"award-number":["NA"]}],"id":[{"id":"10.13039\/100006734","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/na","name":"BioLEC, an Energy Frontier Research Center, U.S. Department of Energy, Office of Science, Basic Energy Sciences","doi-asserted-by":"publisher","award":["NA"],"award-info":[{"award-number":["NA"]}],"id":[{"id":"10.13039\/na","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/na","name":"National Science Foundation Graduate Research Fellowship","doi-asserted-by":"publisher","award":["NA"],"award-info":[{"award-number":["NA"]}],"id":[{"id":"10.13039\/na","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/na","name":"Princeton Catalysis Initiative","doi-asserted-by":"publisher","award":["NA"],"award-info":[{"award-number":["NA"]}],"id":[{"id":"10.13039\/na","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,9,28]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Traditional efforts in modulating the reactivity of metal centers focus on tuning parameters in the primary coordination sphere. The ability to embed stimuli-responsive functionality in the secondary coordination sphere to modulate metal center reactivity represents a distinct strategy for expanding transition metal reactivity while leaving the primary coordination sphere unmodified. Herein, we describe the incorporation of a photoresponsive unit, fluorenone, into the secondary coordination sphere of a Ni(II) complex resulting in a significant perturbation of the complex electronic structure, manifesting in distinct excited states that cannot be predicted by the metal complex or fluorenone unit alone. Using the activation of strong nickel(II) trifluoromethyl bonds as a readout of this strategy, the incorporation of latent ligand-centered radicals enabled near-quantitative generation of trifluoromethyl radical. Comparisons with a control complex lacking the appended fluorenone unit demonstrated the unique role of the appended fluorenone, showcasing the ability to endow photoreactivity to an otherwise unreactive complex. Mechanistic studies including TD-DFT calculations, cyclic voltammetry, and transient absorption spectroscopy support that irradiation with visible light leads to metal-to-ligand charge transfer followed by relaxation to a long-lived 3d\u2013d state. The studies presented herein showcase a ligand design principle focused on secondary coordination sphere edits through the introduction of latent ligand-centered radicals, allowing for the direct tuning of the metal center reactivity.<\/jats:p>","DOI":"10.1021\/jacsau.6c00738","type":"journal-article","created":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T04:02:10Z","timestamp":1786680130000},"page":"5068-5080","source":"Crossref","is-referenced-by-count":0,"title":["Unlocking Distinct\nExcited States of a Nickel(II)\nComplex Without Modulating the Primary Coordination Sphere"],"prefix":"10.1021","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-3648-8769","authenticated-orcid":true,"given":"Hailey","family":"Hendricks","sequence":"first","affiliation":[{"name":"Princeton University , , , ,","place":["Princeton, New Jersey, United States, 08544"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-5749-6075","authenticated-orcid":true,"given":"Raina M.","family":"Morley","sequence":"additional","affiliation":[{"name":"Princeton University , , , ,","place":["Princeton, New Jersey, United States, 08544"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Angel Y.","family":"Gomez","sequence":"additional","affiliation":[{"name":"Princeton University , , , ,","place":["Princeton, New Jersey, United States, 08544"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yokari","family":"Godi\u0301nez-Loyola","sequence":"additional","affiliation":[{"name":"Princeton University , , , ,","place":["Princeton, New Jersey, United States, 08544"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2583-5314","authenticated-orcid":true,"given":"Matthew V.","family":"Pecoraro","sequence":"additional","affiliation":[{"name":"Princeton University , , , ,","place":["Princeton, New Jersey, United States, 08544"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3336-7960","authenticated-orcid":true,"given":"Gregory D.","family":"Scholes","sequence":"additional","affiliation":[{"name":"Princeton University , , , ,","place":["Princeton, New Jersey, United States, 08544"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5449-1584","authenticated-orcid":true,"given":"Jose B.","family":"Roque","sequence":"additional","affiliation":[{"name":"Princeton University , , , ,","place":["Princeton, New Jersey, United States, 08544"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,8,13]]},"reference":[{"key":"2026092808083015300_cit1a","first-page":"151","article-title":"Magical\nPower of Transition Metals: Past, Present, and Future. Nobel Lecture,\nDecember 8, 2010","volume-title":"Nobel Lectures in Chemistry\n2006\u20132010","author":"Negishi","year":"2012"},{"key":"2026092808083015300_cit1b","doi-asserted-by":"publisher","first-page":"415","DOI":"10.1038\/22672","article-title":"Detonator of the Population Explosion","volume":"400","author":"Smil","year":"1999","journal-title":"Nature"},{"key":"2026092808083015300_cit2","doi-asserted-by":"publisher","first-page":"1936","DOI":"10.1021\/ic061926w","article-title":"Electronic\nEffects on Reductive Elimination to Form Carbon\u2013Carbon and\nCarbon\u2013Heteroatom Bonds from Palladium (II) Complexes","volume":"46","author":"Hartwig","year":"2007","journal-title":"Inorg. Chem."},{"key":"2026092808083015300_cit3","doi-asserted-by":"publisher","first-page":"2741","DOI":"10.1021\/cr9902704","article-title":"Ligand Bite\nAngle Effects in Metal-Catalyzed C\u2013C Bond Formation","volume":"100","author":"van Leeuwen","year":"2000","journal-title":"Chem. Rev."},{"key":"2026092808083015300_cit4a","doi-asserted-by":"publisher","first-page":"313","DOI":"10.1021\/cr60307a002","article-title":"Steric Effects of Phosphorus Ligands\nin Organometallic\nChemistry and Homogeneous Catalysis","volume":"77","author":"Tolman","year":"1977","journal-title":"Chem. Rev."},{"key":"2026092808083015300_cit4b","doi-asserted-by":"publisher","first-page":"2953","DOI":"10.1021\/ja00713a006","article-title":"Electron\nDonor-Acceptor Properties of Phosphorus Ligands. Substituent Additivity","volume":"92","author":"Tolman","year":"1970","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit5","doi-asserted-by":"publisher","first-page":"1959","DOI":"10.1039\/C7CS00693D","article-title":"Key Factors in Pincer\nLigand Design","volume":"47","author":"Peris","year":"2018","journal-title":"Chem. Soc. Rev."},{"key":"2026092808083015300_cit6","first-page":"1","article-title":"Key Concepts in\nLigand Design","volume-title":"In Ligand Design in Metal Chemistry","author":"Lundgren","year":"2016"},{"key":"2026092808083015300_cit7","doi-asserted-by":"publisher","first-page":"12046","DOI":"10.1021\/acs.chemrev.1c01025","article-title":"Catalysis\nand Electron\nTransfer in De Novo Designed Metalloproteins","volume":"122","author":"Koebke","year":"2022","journal-title":"Chem. Rev."},{"key":"2026092808083015300_cit8","doi-asserted-by":"publisher","first-page":"5308","DOI":"10.1002\/chem.201905119","article-title":"Second-Coordination Sphere Effects on Selectivity and\nSpecificity of Heme and Nonheme Iron Enzymes","volume":"26","author":"de Visser","year":"2020","journal-title":"Chem.\u2500Eur. J."},{"key":"2026092808083015300_cit9","doi-asserted-by":"publisher","first-page":"3646","DOI":"10.1021\/ic901550k","article-title":"Role of the Secondary Coordination Sphere in Metal-Mediated\nDioxygen Activation","volume":"49","author":"Shook","year":"2010","journal-title":"Inorg. Chem."},{"key":"2026092808083015300_cit10","doi-asserted-by":"publisher","first-page":"11900","DOI":"10.1021\/acs.chemrev.1c00914","article-title":"Second and Outer Coordination Sphere\nEffects in Nitrogenase, Hydrogenase, Formate Dehydrogenase, and CO\nDehydrogenase","volume":"122","author":"Stripp","year":"2022","journal-title":"Chem. Rev."},{"key":"2026092808083015300_cit11","doi-asserted-by":"publisher","first-page":"11974","DOI":"10.1021\/acs.chemrev.2c00106","article-title":"Designing\nArtificial Metalloenzymes by Tuning of the Environment Beyond the\nPrimary Coordination Sphere","volume":"122","author":"Van Stappen","year":"2022","journal-title":"Chem. Rev."},{"key":"2026092808083015300_cit12a","doi-asserted-by":"publisher","first-page":"15038","DOI":"10.1021\/jacs.2c02937","article-title":"Distinct Reactivity Modes of a Copper\nHydride Enabled by an Intramolecular Lewis Acid","volume":"144","author":"Norwine","year":"2022","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit12b","doi-asserted-by":"publisher","first-page":"3101","DOI":"10.1002\/anie.201511527","article-title":"Hydrogen Bonds Dictate the Coordination\nGeometry of Copper: Characterization of a Square-Planar Copper(I)\nComplex","volume":"55","author":"Dahl","year":"2016","journal-title":"Angew. Chem., Int. Ed."},{"key":"2026092808083015300_cit13","doi-asserted-by":"publisher","first-page":"1866","DOI":"10.1021\/ja028548o","article-title":"Proton-Coupled O\u2013O\nActivation\non a Redox Platform Bearing a Hydrogen-Bonding Scaffold","volume":"125","author":"Chang","year":"2003","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit14","doi-asserted-by":"publisher","first-page":"4265","DOI":"10.1021\/jacs.9b11806","article-title":"Ligand-Controlled\nProduct Selectivity in Electrochemical Carbon Dioxide Reduction Using\nManganese Bipyridine Catalysts","volume":"142","author":"R\u00f8nne","year":"2020","journal-title":"J. Am. Chem.\nSoc."},{"key":"2026092808083015300_cit15","doi-asserted-by":"publisher","first-page":"3014","DOI":"10.1021\/acs.organomet.2c00439","article-title":"Synthesis, Structure, and Hydroboration\nReactivity\nof Anionic Nickel(0) Complexes Supported by Bidentate NHC-Pyridone\nLigands","volume":"41","author":"Afandiyeva","year":"2022","journal-title":"Organometallics"},{"key":"2026092808083015300_cit16","doi-asserted-by":"publisher","first-page":"18194","DOI":"10.1021\/jacs.7b11465","article-title":"Hydrazine Capture\nand N-N Bond Cleavage\nat Iron Enabled by Flexible Appended Lewis Acids","volume":"139","author":"Kiernicki","year":"2017","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit17","doi-asserted-by":"publisher","first-page":"2556","DOI":"10.1021\/ja0305151","article-title":"Utilization of Hydrogen\nBonds to Stabilize M-O(H) Units: Synthesis and Properties of Monomeric\nIron and Manganese Complexes with Terminal Oxo and Hydroxo Ligands","volume":"126","author":"MacBeth","year":"2004","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit18","doi-asserted-by":"publisher","first-page":"15308","DOI":"10.1002\/chem.201502154","article-title":"Cyclometalated\nRuthenium(II) Anthraquinone Complexes\nExhibit Strong Anticancer Activity in Hypoxic Tumor Cells","volume":"21","author":"Zeng","year":"2015","journal-title":"Chem.\u2500Eur. J."},{"key":"2026092808083015300_cit19","doi-asserted-by":"publisher","first-page":"15936","DOI":"10.1002\/anie.201706564","article-title":"Time-Resolved Interception of Multiple-Charge\nAccumulation in a Sensitizer-Acceptor Dyad","volume":"56","author":"Mendes Marinho","year":"2017","journal-title":"Angew. Chem., Int. Ed."},{"key":"2026092808083015300_cit20","doi-asserted-by":"publisher","first-page":"1711","DOI":"10.1021\/ic800963u","article-title":"Photophysical\nand Redox Properties of Dinuclear Ru and Os Polypyridyl Complexes\nwith Incorporated Photostable Spiropyran Bridge","volume":"48","author":"Jukes","year":"2009","journal-title":"Inorg. Chem."},{"key":"2026092808083015300_cit21","doi-asserted-by":"publisher","first-page":"13375","DOI":"10.1021\/ja9038856","article-title":"Length Dependence for\nIntramolecular Energy Transfer\nin Three- and Four-Color Donor-Spacer-Acceptor Arrays","volume":"131","author":"Harriman","year":"2009","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit22","doi-asserted-by":"publisher","first-page":"63","DOI":"10.1021\/jacs.6b11418","article-title":"Bifunctional Photocatalysts for Enantioselective\nAerobic\nOxidation of \u03b2-Ketoesters","volume":"139","author":"Ding","year":"2017","journal-title":"J. Am. Chem.\nSoc."},{"key":"2026092808083015300_cit23","doi-asserted-by":"publisher","first-page":"18651","DOI":"10.1021\/acscatal.4c05893","article-title":"Bifunctional\nPhotocatalysts Display Proximity-Enhanced\nCatalytic Activity in Metallaphotoredox C\u2013O Coupling","volume":"14","author":"Dolcini","year":"2024","journal-title":"ACS Catal."},{"key":"2026092808083015300_cit24a","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202211433","article-title":"Intraligand Charge\nTransfer Enables Visible-Light-Mediated Nickel-Catalyzed Cross-Coupling\nReactions","volume":"61","author":"Cavedon","year":"2022","journal-title":"Angew. Chem., Int. Ed."},{"key":"2026092808083015300_cit24b","doi-asserted-by":"publisher","first-page":"13169","DOI":"10.1021\/jacs.4c16050","article-title":"Evidence for a Unifying NiI\/NiIII Mechanism in Light-Mediated Cross-Coupling Catalysis","volume":"147","author":"Anghileri","year":"2025","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit25","doi-asserted-by":"publisher","first-page":"3035","DOI":"10.1021\/jacs.7b13281","article-title":"Long-Lived Charge-Transfer\nStates of Nickel(II) Aryl Halide Complexes Facilitate Bimolecular\nPhotoinduced Electron Transfer","volume":"140","author":"Shields","year":"2018","journal-title":"J. Am. Chem.\nSoc."},{"key":"2026092808083015300_cit26","doi-asserted-by":"publisher","first-page":"1313","DOI":"10.1038\/s41467-022-28948-8","article-title":"Deciphering the\nMechanism of the Ni-Photocatalyzed\nC\u2013O Cross-Coupling Reaction Using a Tridentate Pyridinophane\nLigand","volume":"13","author":"Na","year":"2022","journal-title":"Nat. Commun."},{"key":"2026092808083015300_cit27","doi-asserted-by":"publisher","first-page":"4066","DOI":"10.1021\/acscatal.3c05962","article-title":"Gold(I) Complex with a Photoactive\nLigand Behaves as a Two-in-One Dual Metallaphotoredox Cross-Coupling\nCatalyst","volume":"14","author":"Ruiz-Zambrana","year":"2024","journal-title":"ACS Catal."},{"key":"2026092808083015300_cit28","doi-asserted-by":"publisher","first-page":"4052","DOI":"10.1038\/s41467-022-31613-9","article-title":"A Visible-Light Activated\nSecondary\nPhosphine Oxide Ligand Enabling Pd-Catalyzed Radical Cross-Couplings","volume":"13","author":"Kuribara","year":"2022","journal-title":"Nat. Commun."},{"key":"2026092808083015300_cit29","doi-asserted-by":"publisher","first-page":"1635","DOI":"10.1021\/acscatal.4c07128","article-title":"Ligand-Enabled\n\u201cTwo-in-One\u201d\nMetallaphotocatalytic Cross Couplings","volume":"15","author":"Li","year":"2025","journal-title":"ACS Catal."},{"key":"2026092808083015300_cit30","doi-asserted-by":"publisher","first-page":"188","DOI":"10.1126\/science.aeb5832","article-title":"Modular Enantioselective\nPhotocatalysts from Privileged Pybox Scaffolds","volume":"392","author":"Kelch","year":"2026","journal-title":"Science"},{"key":"2026092808083015300_cit31","doi-asserted-by":"publisher","first-page":"10224","DOI":"10.1021\/acscatal.3c01654","article-title":"Acridine PNP-Pincer\nLigands Enabling\nTransition Metal-Catalyzed Photoreactions","volume":"13","author":"Matsuda","year":"2023","journal-title":"ACS\nCatal."},{"key":"2026092808083015300_cit32","doi-asserted-by":"publisher","first-page":"19592","DOI":"10.1021\/jacs.2c09318","article-title":"Shining Visible\nLight on Reductive\nElimination: Acridine-Pd-Catalyzed Cross-Coupling of Aryl Halides\nwith Carboxylic Acids","volume":"144","author":"Toriumi","year":"2022","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit33a","doi-asserted-by":"publisher","first-page":"10075","DOI":"10.1021\/acs.chemrev.6b00057","article-title":"Organic Photoredox\nCatalysis","volume":"116","author":"Romero","year":"2016","journal-title":"Chem. Rev."},{"key":"2026092808083015300_cit33b","doi-asserted-by":"publisher","first-page":"111","DOI":"10.1016\/1010-6030(90)87096-T","article-title":"Excited States of Ketones as Electron Donors-ketone-iodonium\nSalt Systems as Photoinitiators for Radical Polymerization","volume":"52","author":"Timpe","year":"1990","journal-title":"J. Photochem. Photobiol., A"},{"key":"2026092808083015300_cit33c","doi-asserted-by":"publisher","first-page":"253","DOI":"10.1016\/1010-6030(89)80012-7","article-title":"Light-Induced Polymer and Polymerization\nReactions XXXIII: Direct Photoinitiation of Methyl Methacrylate Polymerization\nby Excited States of Ketones","volume":"46","author":"Timpe","year":"1989","journal-title":"J. Photochem.\nPhotobiol., A"},{"key":"2026092808083015300_cit33d","doi-asserted-by":"publisher","first-page":"5323","DOI":"10.1039\/c3cs35531d","article-title":"Triplet Photosensitizers:\nFrom Molecular Design to Applications","volume":"42","author":"Zhao","year":"2013","journal-title":"Chem.\nSoc. Rev."},{"key":"2026092808083015300_cit34","doi-asserted-by":"publisher","first-page":"218","DOI":"10.1016\/j.cplett.2017.07.039","article-title":"Revisiting the Photophysics of 9-fluorenone:\nUltrafast Time-Resolved Fluorescence and Theoretical Studies","volume":"686","author":"Chang","year":"2017","journal-title":"Chem. Phys. Lett."},{"key":"2026092808083015300_cit35","doi-asserted-by":"publisher","first-page":"12200","DOI":"10.1021\/jacs.8b07405","article-title":"Sp3 C\u2013H\nArylation and Alkylation Enabled by\nthe Synergy of Triplet Excited Ketones and Nickel Catalysts","volume":"140","author":"Shen","year":"2018","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit36","doi-asserted-by":"publisher","first-page":"8723","DOI":"10.1021\/acs.joc.5c00794","article-title":"Triplet Ketone Catalysis-Enabled\nFunctionalization of Thioanisoles with Maleimides","volume":"90","author":"Bisoyi","year":"2025","journal-title":"J. Org. Chem."},{"key":"2026092808083015300_cit37","doi-asserted-by":"publisher","first-page":"7808","DOI":"10.1021\/jacs.6b03221","article-title":"Enantioselective Intermolecular\n[2 + 2] Photocycloaddition Reactions of 2(1H)-quinolones Induced by\nVisible Light Irradiation","volume":"138","author":"Tro\u0308ster","year":"2016","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit38","doi-asserted-by":"publisher","first-page":"1289","DOI":"10.1055\/s-0042-1751444","article-title":"Recent Advances in Dual Triplet Ketone\/Transition-Metal\nCatalysis","volume":"34","author":"Iziumchenko","year":"2023","journal-title":"Synlett"},{"key":"2026092808083015300_cit39","doi-asserted-by":"publisher","first-page":"4253","DOI":"10.1021\/ja00993a001","article-title":"Molecular Orbital Theory of the Electronic Structure\nof Organic Compounds. I. Substituent Effects and Dipole Moments","volume":"89","author":"Pople","year":"1967","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit40a","first-page":"183","article-title":"Organo-transition\nMetal Compounds Containing Perfluorinated\nLigands","volume-title":"Advances in Organometallic Chemistry","author":"Hughes","year":"1990"},{"key":"2026092808083015300_cit40b","doi-asserted-by":"publisher","first-page":"211","DOI":"10.1016\/S0065-3055(08)60492-X","article-title":"Trifluoromethyl-Containing Transition Metal Complexes","volume":"35","author":"Morrison","year":"1993","journal-title":"Adv. Organomet. Chem."},{"key":"2026092808083015300_cit41b","doi-asserted-by":"publisher","first-page":"4236","DOI":"10.1021\/ja9005699","article-title":"Fluxionality\nof [(Ph3P)3Rh(X)]: The Extreme Case of X = CF3","volume":"131","author":"Goodman","year":"2009","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit41c","doi-asserted-by":"publisher","first-page":"3672","DOI":"10.1021\/om100543t","article-title":"Synthesis and X-ray Structure of\na Diamagnetic Oxo-Bridged Trifluoromethyl\u2013Chromium(V) Complex:\nStructural and Computational Comparisons Between CF3 and\nCH3 Ligands in Two Different Oxidation States of Chromium","volume":"29","author":"Huang","year":"2010","journal-title":"Organometallics"},{"key":"2026092808083015300_cit42","doi-asserted-by":"publisher","first-page":"8141","DOI":"10.1021\/ja4030462","article-title":"A Five-Coordinate\nNickel(II) Fluoroalkyl Complex as a Precursor to a Spectroscopically\nDetectable Ni(III) Species","volume":"135","author":"Zhang","year":"2013","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit43","doi-asserted-by":"publisher","first-page":"16105","DOI":"10.1021\/jacs.6b10350","article-title":"Carbon\u2013Carbon Bond-Forming Reductive Elimination\nfrom Isolated Nickel(III) Complexes","volume":"138","author":"Bour","year":"2016","journal-title":"J. Am.\nChem. Soc."},{"key":"2026092808083015300_cit44","doi-asserted-by":"publisher","first-page":"3113","DOI":"10.1039\/C4CC09594D","article-title":"Stable\nBis(trifluoromethyl)nickel(III)\nComplexes","volume":"51","author":"Tang","year":"2015","journal-title":"Chem. Commun."},{"key":"2026092808083015300_cit45a","doi-asserted-by":"publisher","first-page":"224","DOI":"10.1038\/nature10647","article-title":"Trifluoromethylation\nof Arenes and Heteroarenes by Means of Photoredox Catalysis","volume":"480","author":"Nagib","year":"2011","journal-title":"Nature"},{"key":"2026092808083015300_cit45b","doi-asserted-by":"publisher","first-page":"14411","DOI":"10.1073\/pnas.1109059108","article-title":"Innate C-H Trifluoromethylation of Heterocycles","volume":"108","author":"Ji","year":"2011","journal-title":"Proc. Natl. Acad. Sci. U.S.A."},{"key":"2026092808083015300_cit46","doi-asserted-by":"publisher","first-page":"4475","DOI":"10.1021\/cr1004293","article-title":"Aromatic Trifluoromethylation with Metal Complexes","volume":"111","author":"Grushin","year":"2011","journal-title":"Chem. Rev."},{"key":"2026092808083015300_cit47a","doi-asserted-by":"publisher","first-page":"650","DOI":"10.1021\/cr500223h","article-title":"Electrophilic Trifluoromethylation by Use of Hypervalent Iodine Reagents","volume":"115","author":"Charpentier","year":"2015","journal-title":"Chem. Rev."},{"key":"2026092808083015300_cit47b","doi-asserted-by":"publisher","first-page":"6580","DOI":"10.1039\/C4OB00671B","article-title":"Recent Advances in Trifluoromethylation of Organic\nCompounds Using Umemoto\u2019s Reagents","volume":"12","author":"Zhang","year":"2014","journal-title":"Org.\nBiomol. Chem."},{"key":"2026092808083015300_cit48","doi-asserted-by":"publisher","first-page":"24620","DOI":"10.1002\/anie.202109953","article-title":"Photoinduced\nTrifluoromethylation\nof Arenes and Heteroarenes Catalyzed by High-Valent Nickel Complexes","volume":"60","author":"Deolka","year":"2021","journal-title":"Angew. Chem., Int. Ed."},{"key":"2026092808083015300_cit49b","doi-asserted-by":"publisher","first-page":"1311","DOI":"10.1002\/anie.201711693","article-title":"Photoinduced\nCobalt(III)-Trifluoromethyl Bond Activation Enables Arene C\u2013H\nTrifluoromethylation","volume":"57","author":"Harris","year":"2018","journal-title":"Angew. Chem., Int. Ed."},{"key":"2026092808083015300_cit49c","doi-asserted-by":"publisher","first-page":"13607","DOI":"10.1021\/acscatal.3c03832","article-title":"Catalytic C\u2013H Trifluoromethylation\nof Arenes and Heteroarenes via Visible Light Photoexcitation of a\nCo(III)\u2013CF3 Complex","volume":"13","author":"Kuehner","year":"2023","journal-title":"ACS Catal."},{"key":"2026092808083015300_cit50a","doi-asserted-by":"publisher","first-page":"3534","DOI":"10.1073\/pnas.0408029102","article-title":"Long-range Electron\nTransfer","volume":"102","author":"Gray","year":"2005","journal-title":"Proc. Natl. Acad. Sci. U.S.A."},{"key":"2026092808083015300_cit50b","doi-asserted-by":"publisher","first-page":"25","DOI":"10.1021\/ar100092v","article-title":"How Donor\u2013Bridge\u2013Acceptor Energetics\nInfluence Electron Tunneling Dynamics and Their Distance Dependences","volume":"44","author":"Wenger","year":"2011","journal-title":"Acc. Chem. Res."},{"key":"2026092808083015300_cit50c","doi-asserted-by":"publisher","first-page":"5626","DOI":"10.1002\/anie.200601379","article-title":"Non\u2013Exponential Distance Dependence\nof Bridge-Mediated Electronic Coupling","volume":"45","author":"Eng","year":"2006","journal-title":"Angew.\nChem., Int. Ed."},{"key":"2026092808083015300_cit50d","doi-asserted-by":"publisher","first-page":"5847","DOI":"10.1039\/b706122f","article-title":"Electron and Energy Transfer in Donor\u2013acceptor\nSystems with Conjugated Molecular Bridges","volume":"9","author":"Albinsson","year":"2007","journal-title":"Phys.\nChem. Chem. Phys."},{"key":"2026092808083015300_cit51a","doi-asserted-by":"publisher","first-page":"836","DOI":"10.1063\/1.1699044","article-title":"A Theory of Sensitized Luminescence\nin Solids","volume":"21","author":"Dexter","year":"1953","journal-title":"J. Chem. Phys."},{"issue":"0","key":"2026092808083015300_cit51b","doi-asserted-by":"publisher","first-page":"880","DOI":"10.1039\/f29797500880","article-title":"Intermolecular Energy Transfer in Rigid Matrices at\n77 K. Part 1. Quenching of Triphenylene Phosphorescence by Aquated\nTerpositive Lanthanide Ions","volume":"75","author":"Brown","year":"1979","journal-title":"J. Chem. Soc.,\nFaraday Trans."},{"key":"2026092808083015300_cit51c","first-page":"383","volume-title":"Modern Molecular Photochemistry\nof Organic Molecules","author":"Turro","year":"2010"},{"key":"2026092808083015300_cit52","doi-asserted-by":"publisher","first-page":"462","DOI":"10.1021\/acs.joc.2c02448","article-title":"Overcoming Back Electron Transfer\nin the Electron Donor\u2013Acceptor\nComplex-Mediated Visible Light-Driven Generation of \u03b1-Aminoalkyl\nRadicals from Secondary Anilines","volume":"88","author":"Runemark","year":"2023","journal-title":"J. Org. Chem."},{"key":"2026092808083015300_cit53","doi-asserted-by":"publisher","first-page":"5800","DOI":"10.1021\/jacs.0c00781","article-title":"3d-d Excited States of Ni(II) Complexes\nRelevant to Photoredox Catalysis: Spectroscopic Identification and\nMechanistic Implications","volume":"142","author":"Ting","year":"2020","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit54a","doi-asserted-by":"publisher","first-page":"21100","DOI":"10.1002\/anie.202100270","article-title":"Visible-Light-Induced Homolysis of Earth-Abundant Metal\nSubstrate Complexes: A Complementary Activation Strategy in Photoredox\nCatalysis","volume":"60","author":"Abderrazak","year":"2021","journal-title":"Angew. Chem., Int. Ed."},{"key":"2026092808083015300_cit54b","doi-asserted-by":"publisher","DOI":"10.1002\/cctc.202200916","article-title":"Ligand-to-Metal Charge Transfer (LMCT) Photochemistry\nat 3d-Metal Complexes: An Emerging Tool for Sustainable Organic Synthesis","volume":"14","author":"Julia\u0301","year":"2022","journal-title":"ChemCatChem"},{"key":"2026092808083015300_cit54c","doi-asserted-by":"publisher","first-page":"2121","DOI":"10.1021\/ja00870a025","article-title":"Photolyses of Metal\nCompounds: Cupric Chloride in Organic Media","volume":"84","author":"Kochi","year":"1962","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit54d","doi-asserted-by":"publisher","first-page":"14217","DOI":"10.1039\/D3SC02588H","article-title":"Visible Light-induced Palladium-carbon\nBond Weakening in Catalytically Relevant T-shaped Complexes","volume":"14","author":"Waddell","year":"2023","journal-title":"Chem. Sci."},{"key":"2026092808083015300_cit55","doi-asserted-by":"publisher","first-page":"4449","DOI":"10.1039\/D3SC00388D","article-title":"Light-Induced Homolysis\nof Copper(II)-complexes\u2500a\nPerspective for Photocatalysis","volume":"14","author":"Reichle","year":"2023","journal-title":"Chem. Sci."},{"key":"2026092808083015300_cit56a","doi-asserted-by":"publisher","first-page":"12116","DOI":"10.1021\/jacs.2c02580","article-title":"Toward Improved\nCharge Separation through Conformational Control in Copper Coordination\nComplexes","volume":"144","author":"Griffin","year":"2022","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit56b","doi-asserted-by":"publisher","first-page":"7747","DOI":"10.1021\/acs.jpca.3c04269","article-title":"Excited State Dynamics of a Conformationally Fluxional\nCopper Coordination Complex","volume":"127","author":"Charette","year":"2023","journal-title":"J. Phys. Chem.\nA"},{"key":"2026092808083015300_cit57a","doi-asserted-by":"publisher","first-page":"25","DOI":"10.1016\/j.saa.2009.01.014","article-title":"Synthesis, Spectroscopic\nCharacterization and Hydroxylation of Mn(II) Complexes with Bis(2-pyridylmethyl)benzylamine","volume":"73","author":"Li","year":"2009","journal-title":"Spectrochim. Acta, Part A"},{"key":"2026092808083015300_cit57b","doi-asserted-by":"publisher","DOI":"10.1002\/cctc.202300735","article-title":"Homogeneous Iron-Catalysed Oxidation\nof Non-Activated Alkanes With Hydrogen Peroxide","volume":"15","author":"Mao","year":"2023","journal-title":"ChemCatChem"},{"key":"2026092808083015300_cit58","doi-asserted-by":"publisher","first-page":"3831","DOI":"10.1021\/om500535x","article-title":"Synthesis of Fluoroalkyl\nPalladium and Nickel Complexes\nvia Decarbonylation of Acyl Metal Species","volume":"33","author":"Maleckis","year":"2014","journal-title":"Organometallics"},{"key":"2026092808083015300_cit59","doi-asserted-by":"publisher","first-page":"1477","DOI":"10.1021\/om2012776","article-title":"Linear Bis(Perfluoroalkyl) Complexes of Nickel Bipyridine","volume":"31","author":"Yamaguchi","year":"2012","journal-title":"Organometallics"},{"key":"2026092808083015300_cit60","doi-asserted-by":"publisher","first-page":"3933","DOI":"10.1021\/om800300k","article-title":"Exploring Trifluoromethylation\nReactions at Nickel: A Structural and Reactivity Study","volume":"27","author":"Dubinina","year":"2008","journal-title":"Organometallics"},{"key":"2026092808083015300_cit61","doi-asserted-by":"publisher","first-page":"3","DOI":"10.1021\/acs.organomet.9b00678","article-title":"Oxidatively Induced\nAryl-CF3 Coupling at Diphosphine Nickel Complexes","volume":"39","author":"Bour","year":"2020","journal-title":"Organometallics"},{"key":"2026092808083015300_cit62","doi-asserted-by":"publisher","first-page":"706","DOI":"10.1021\/acs.organomet.4c00029","article-title":"Nickel\nPerfluoroalkyl Complexes Supported by Simple Acetate Coligands","volume":"43","author":"Ravidas","year":"2024","journal-title":"Organometallics"},{"key":"2026092808083015300_cit63a","doi-asserted-by":"publisher","first-page":"19513","DOI":"10.1021\/jacs.9b11999","article-title":"Nickel(II\/IV)\nManifold\nEnables Room-Temperature C(sp3)\u2013H Functionalization","volume":"141","author":"Roberts","year":"2019","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit63b","doi-asserted-by":"publisher","first-page":"12898","DOI":"10.1002\/anie.201706237","article-title":"C\u2013H Bond Trifluoromethylation\nof Arenes Enabled by a Robust, High-Valent Nickel(IV) Complex","volume":"56","author":"D\u2019Accriscio","year":"2017","journal-title":"Angew. Chem., Int. Ed."},{"key":"2026092808083015300_cit64","doi-asserted-by":"publisher","first-page":"1349","DOI":"10.1039\/DT9840001349","article-title":"Synthesis,\nStructure, and Spectroscopic Properties of Copper(II) Compounds Containing\nNitrogen\u2013Sulphur Donor Ligands; the Crystal and Molecular Structure\nof Aqua[1,7-bis(N-methylbenzimidazol-2\u2032-yl)-2,6-dithiaheptane]Copper(II)\nPerchlorate","author":"Addison","year":"1984","journal-title":"J. Chem. Soc., Dalton Trans."},{"key":"2026092808083015300_cit65a","doi-asserted-by":"publisher","first-page":"2458","DOI":"10.1021\/acscatal.8b05025","article-title":"Enhanced Catalytic Activity of Nickel\nComplexes of an Adaptive Diphosphine-Benzophenone Ligand in Alkyne\nCyclotrimerization","volume":"9","author":"Orsino","year":"2019","journal-title":"ACS Catal."},{"key":"2026092808083015300_cit65b","doi-asserted-by":"publisher","first-page":"5163","DOI":"10.1002\/chem.201703254","article-title":"Periodic Trends in\nthe Binding of a Phosphine-Tethered Ketone Ligand to Fe, Co, Ni, and\nCu","volume":"24","author":"Verhoeven","year":"2018","journal-title":"Chem.\u2500Eur. J."},{"key":"2026092808083015300_cit66","doi-asserted-by":"publisher","first-page":"197","DOI":"10.1021\/acs.jchemed.7b00361","article-title":"A Practical Beginner\u2019s Guide to Cyclic Voltammetry","volume":"95","author":"Elgrishi","year":"2018","journal-title":"J. Chem. Educ."},{"key":"2026092808083015300_cit67","doi-asserted-by":"publisher","first-page":"401","DOI":"10.1021\/cr00072a005","article-title":"Photosensitization\nby Reversible Electron Transfer:\nTheories, Experimental Evidence, and Examples","volume":"86","author":"Kavarnos","year":"1986","journal-title":"Chem. Rev."},{"key":"2026092808083015300_cit68","doi-asserted-by":"publisher","first-page":"8034","DOI":"10.1021\/jacs.5b04892","article-title":"Oxidation\nof Ni(II) to Ni(IV) with\nAryl Electrophiles Enables Ni-Mediated Aryl-CF3 Coupling","volume":"137","author":"Bour","year":"2015","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit69","doi-asserted-by":"publisher","first-page":"7970","DOI":"10.1021\/acs.orglett.9b02948","article-title":"Cathodic C\u2013H\nTrifluoromethylation of Arenes and Heteroarenes Enabled by an in Situ-Generated\nTriflyltriethylammonium Complex","volume":"21","author":"Jud","year":"2019","journal-title":"Org. Lett."},{"key":"2026092808083015300_cit70","doi-asserted-by":"publisher","first-page":"14353","DOI":"10.1038\/ncomms14353","article-title":"Photo-Driven\nRedox-Neutral Decarboxylative Carbon-Hydrogen Trifluoromethylation\nof (Hetero)arenes with Trifluoroacetic Acid","volume":"8","author":"Lin","year":"2017","journal-title":"Nat. Commun."},{"key":"2026092808083015300_cit71","doi-asserted-by":"publisher","first-page":"25538","DOI":"10.1021\/jacs.3c10333","article-title":"Bi-Catalyzed\nTrifluoromethylation of C(sp2)\u2013H Bonds under Light","volume":"145","author":"Tsuruta","year":"2023","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit72","doi-asserted-by":"publisher","first-page":"11071","DOI":"10.1021\/ja972071c","article-title":"Quenching Processes in Hydrogen-Bonded\nPairs: Interactions of Excited Fluorenone with Alcohols and Phenols","volume":"119","author":"Biczo\u0301k","year":"1997","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit73","doi-asserted-by":"publisher","DOI":"10.1002\/cctc.202301100","article-title":"Spectroscopic\nTechniques to Unravel Mechanistic Details in Light Induced Transformations\nand Photoredox Catalysis","volume":"16","author":"De Kreijger","year":"2024","journal-title":"ChemCatChem"},{"key":"2026092808083015300_cit74","doi-asserted-by":"crossref","DOI":"10.1007\/978-3-540-73349-2","volume-title":"Photochemistry and Photophysics\nof Coordination Compounds II","author":"Balzani","year":"2007"},{"key":"2026092808083015300_cit75","doi-asserted-by":"publisher","first-page":"22914","DOI":"10.1039\/C6CP04308A","article-title":"Direct Observation\nof Slow Intersystem Crossing in an Aromatic Ketone, Fluorenone","volume":"18","author":"Soep","year":"2016","journal-title":"Phys. Chem. Chem. Phys."},{"key":"2026092808083015300_cit76","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1007\/978-3-031-68464-7_5","article-title":"Understanding Photocatalytic Mechanism\nThrough Spectroscopy Techniques","volume-title":"Graphene-Based\nPhotocatalysts for Hydrogen Production and Environmental Remediation","author":"Khan","year":"2024"},{"key":"2026092808083015300_cit77","doi-asserted-by":"publisher","DOI":"10.1002\/poc.4345","article-title":"Investigation of Excited-State\nDeactivation Processes in Benzofluorenones Using Time-Resolved Transient\nAbsorption Spectroscopy","volume":"35","author":"Dickson-Karn","year":"2022","journal-title":"J. Phys. Org. Chem."},{"key":"2026092808083015300_cit78","unstructured":"Frisch, M. J.; Trucks, G. W.; Schlegel, H. B.; Scuseria, G. E.; Robb, M. A.; Cheeseman, J. R.; Scalmani, G.; Barone, V.; Petersson, G. A.; Nakatsuji, H.; Li, X.; Caricato, M.; Marenich, A. V.; Bloino, J.; Janesko, B. G.; Gomperts, R.; Mennucci, B.; Hratchian, H. P.; Ortiz, J. V.; Izmaylov, A. F.; Sonnenberg, J. L.; Williams-Young, D.; Ding, F.; Lipparini, F.; Egidi, F.; Goings, J.; Peng, B.; Petrone, A.; Henderson, T.; Ranasinghe, D.; Zakrzewski, V. G.; Gao, J.; Rega, N.; Zheng, G.; Liang, W.; Hada, M.; Ehara, M.; Toyota, K.; Fukuda, R.; Hasegawa, J.; Ishida, M.; Nakajima, T.; Honda, Y.; Kitao, O.; Nakai, H.; Vreven, T.; Throssell, K.; Montgomery, J. A., Jr.; Peralta, J. E.; Ogliaro, F.; Bearpark, M. J.; Heyd, J. J.; Brothers, E. N.; Kudin, K. N.; Staroverov, V. N.; Keith, T. A.; Kobayashi, R.; Normand, J.; Raghavachari, K.; Rendell, A. P.; Burant, J. C.; Iyengar, S. S.; Tomasi, J.; Cossi, M.; Millam, J. M.; Klene, M.; Adamo, C.; Cammi, R.; Ochterski, J. W.; Martin, R. L.; Morokuma, K.; Farkas, O.; Foresman, J. B.\n          Gaussian 16, Revision C.01; Gaussian, Inc.: Wallingford CT, 2016."},{"key":"2026092808083015300_cit79","doi-asserted-by":"publisher","first-page":"5829","DOI":"10.1063\/1.467146","article-title":"Fully Optimized Contracted Gaussian\nBasis Sets of Triple Zeta Valence Quality for Atoms Li to Kr","volume":"100","author":"Schafer","year":"1994","journal-title":"J. Chem. Phys."},{"key":"2026092808083015300_cit80","doi-asserted-by":"publisher","first-page":"215","DOI":"10.1007\/s00214-007-0310-x","article-title":"The M06 Suite of Density\nFunctionals for Main Group\nThermochemistry, Thermochemical Kinetics, Noncovalent Interactions,\nExcited States, and Transition Elements: Two New Functionals and Systematic\nTesting of Four M06-Class Functionals and 12 Other Functionals","volume":"120","author":"Zhao","year":"2008","journal-title":"Theor. Chem. Acc."},{"key":"2026092808083015300_cit81","doi-asserted-by":"publisher","first-page":"82","DOI":"10.1016\/j.bbabio.2004.04.011","article-title":"Global and\nTarget Analysis of Time-Resolved Spectra","volume":"1657","author":"van Stokkum","year":"2004","journal-title":"Biochim.\nBiophys. Acta, Bioenerg."},{"key":"2026092808083015300_cit82","first-page":"75","article-title":"Data Analysis\nof Time-Resolved Spectra","volume-title":"Biophysical Techniques\nin Photosynthesis","author":"Holzwarth","year":"1996"},{"key":"2026092808083015300_cit83","doi-asserted-by":"publisher","first-page":"14219","DOI":"10.1021\/jp051173j","article-title":"Mediation of Ultrafast\nLight-Harvesting by a Central Dimer in Phycoerythrin 545 Studied by\nTransient Absorption and Global Analysis","volume":"109","author":"Doust","year":"2005","journal-title":"J.\nPhys. Chem. B"},{"key":"2026092808083015300_cit84","doi-asserted-by":"publisher","first-page":"541","DOI":"10.1016\/S0006-3495(76)85709-8","article-title":"Picosecond Kinetics\nof Fluorescence from Chromophore of Purple Membrane-Protein of Halobacterium-Halobium","volume":"16","author":"Alfano","year":"1976","journal-title":"Biophys. J."},{"key":"2026092808083015300_cit85","doi-asserted-by":"publisher","first-page":"4087","DOI":"10.1021\/acs.jpclett.8b01834","article-title":"Triplet Energy Transfer\nGoverns the Dissociation of\nthe Correlated Triplet Pair in Exothermic Singlet Fission","volume":"9","author":"Lee","year":"2018","journal-title":"J. Phys. Chem. Lett."},{"key":"2026092808083015300_cit86","doi-asserted-by":"publisher","first-page":"1","DOI":"10.18637\/jss.v049.i03","article-title":"Glotaran:\nA Java-Based Graphical User Interface for the R Package TIMP","volume":"49","author":"Snellenburg","year":"2012","journal-title":"J. Stat. Softw."},{"key":"2026092808083015300_cit87","doi-asserted-by":"publisher","first-page":"8394","DOI":"10.1021\/acs.inorgchem.1c01242","article-title":"Next Generation\nCuprous Phenanthroline MLCT Photosensitizer Featuring Cyclohexyl Substituents","volume":"60","author":"Rosko","year":"2021","journal-title":"Inorg. Chem."},{"key":"2026092808083015300_cit88","doi-asserted-by":"publisher","first-page":"17635","DOI":"10.1039\/C4DT02849J","article-title":"Spectroelectrochemical\nIdentification\nof Charge-Transfer Excited States in Transition Metal-Based Polypyridyl\nComplexes","volume":"43","author":"Brown","year":"2014","journal-title":"Dalton Trans."},{"key":"2026092808083015300_cit89","doi-asserted-by":"publisher","first-page":"578","DOI":"10.1016\/j.ica.2011.02.084","article-title":"Origin of Electronic\nAbsorption Spectra of MLCT-Excited and One-Electron Reduced 2,2\u2019-Bipyridine\nand 1,10-Phenanthroline Complexes","volume":"374","author":"Za\u0301lis\u030c","year":"2011","journal-title":"Inorg. Chim.\nActa"},{"key":"2026092808083015300_cit90","doi-asserted-by":"publisher","first-page":"21948","DOI":"10.1021\/jacs.2c08838","article-title":"Molecular Design Principles to Elongate\nthe Metal-to-Ligand\nCharge Transfer Excited-State Lifetimes of Square-Planar Nickel(II)\nComplexes","volume":"144","author":"Ogawa","year":"2022","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit91","doi-asserted-by":"publisher","first-page":"29","DOI":"10.1016\/1010-6030(93)80005-T","article-title":"An Evaluation of the Excited State\nAbsorption Spectrum of Ru(bpy)3 2+ in Aqueous and Acetonitrile Solutions","volume":"70","author":"Yoshimura","year":"1993","journal-title":"J. Photochem. Photobiol., A"},{"key":"2026092808083015300_cit92","doi-asserted-by":"publisher","first-page":"4678","DOI":"10.1021\/jo00015a021","article-title":"Spectroelectrochemistry of Aromatic\nLigands and Their\nDerivatives. 1. Reduction Products of 4,4\u2032- Bipyridine, 2,2\u2032-Bipyridine,\n2,2\u2032-Bipyrimidine, and Some Quaternized Derivatives","volume":"56","author":"Braterman","year":"1991","journal-title":"J. Org. Chem."},{"key":"2026092808083015300_cit93","doi-asserted-by":"publisher","first-page":"4976","DOI":"10.1021\/acs.jpclett.4c00226","article-title":"Excited-State\nIdentification of a Nickel-Bipyridine Photocatalyst by Time-Resolved\nX-ray Absorption Spectroscopy","volume":"15","author":"Wallick","year":"2024","journal-title":"J. Phys. Chem.\nLett."},{"key":"2026092808083015300_cit94","doi-asserted-by":"publisher","first-page":"7941","DOI":"10.1021\/acs.jpca.8b06197","article-title":"Vibrational Relaxation and Redistribution\nDynamics\nin Ruthenium(II) Polypyridyl-Based Charge-Transfer Excited States:\nA Combined Ultrafast Electronic and Infrared Absorption Study","volume":"122","author":"Brown","year":"2018","journal-title":"J. Phys. Chem. A"},{"key":"2026092808083015300_cit95","doi-asserted-by":"publisher","first-page":"85","DOI":"10.1016\/0010-8545(88)80032-8","article-title":"Ru(II) Polypyridine Complexes: Photophysics, Photochemistry,\nElectrochemistry, and Chemiluminescence","volume":"84","author":"Juris","year":"1988","journal-title":"Coord.\nChem. Rev."},{"key":"2026092808083015300_cit96","doi-asserted-by":"publisher","first-page":"2352","DOI":"10.1021\/acs.chemrev.3c00602","article-title":"In Situ\nUV-Vis-NIR Absorption Spectroscopy and Catalysis","volume":"124","author":"Bols","year":"2024","journal-title":"Chem. Rev."},{"key":"2026092808083015300_cit97","doi-asserted-by":"publisher","first-page":"132","DOI":"10.1021\/acs.chemrev.1c00528","article-title":"Interrogating Light-Initiated\nDynamics in Metal\u2013Organic Frameworks with Time-Resolved Spectroscopy","volume":"122","author":"Pattengale","year":"2022","journal-title":"Chem. Rev."},{"key":"2026092808083015300_cit98","doi-asserted-by":"publisher","first-page":"468","DOI":"10.1038\/s41557-023-01137-w","article-title":"Janus-Type Emission from a Cyclometalated\nIron(III) Complex","volume":"15","author":"Steube","year":"2023","journal-title":"Nat. Chem."},{"key":"2026092808083015300_cit99","doi-asserted-by":"publisher","first-page":"11608","DOI":"10.1021\/jacs.5c02096","article-title":"Molecular Design\nPrinciples for Photoactive\nTransition Metal Complexes: A Guide for \u201cPhoto-Motivated\u201d\nChemists","volume":"147","author":"Morselli","year":"2025","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit100","doi-asserted-by":"publisher","first-page":"7496","DOI":"10.1021\/jacs.4c16212","article-title":"Excited State Covalency, Dynamics, and Photochemistry\nof Square Planar Ni-Thiolate Complexes Revealed by Ultrafast X-ray\nAbsorption","volume":"147","author":"Lim","year":"2025","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit101","doi-asserted-by":"publisher","first-page":"32941","DOI":"10.1021\/jacs.5c09925","article-title":"Light-Promoted C(sp3)-C(sp3) Reductive Elimination from Dialkyl NiII Complexes","volume":"147","author":"Cusumano","year":"2025","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit102","doi-asserted-by":"publisher","first-page":"6516","DOI":"10.1021\/jacs.2c01356","article-title":"Elucidating the Mechanism of Excited-State\nBond Homolysis in Nickel\u2013Bipyridine Photoredox Catalysts","volume":"144","author":"Cagan","year":"2022","journal-title":"J. Am. Chem. Soc."},{"key":"2026092808083015300_cit103","doi-asserted-by":"publisher","first-page":"4120","DOI":"10.1021\/acs.inorgchem.3c03822","article-title":"Light Activation\nand Photophysics of a Structurally Constrained Nickel(II)\u2013Bipyridine\nAryl Halide Complex","volume":"63","author":"Bi\u0301m","year":"2024","journal-title":"Inorg. Chem."},{"key":"2026092808083015300_cit104","doi-asserted-by":"publisher","first-page":"13315","DOI":"10.1021\/jacs.4c18299","article-title":"Cyclometallated Co(III) Complexes\nwith Lowest-Energy Charge Transfer\nExcited States Accessible with Visible Light","volume":"147","author":"Burton","year":"2025","journal-title":"J. Am. Chem. Soc."}],"container-title":["JACS Au"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.acs.org\/doi\/pdf\/10.1021\/jacsau.6c00738","content-type":"application\/pdf","content-version":"vor","intended-application":"unspecified"},{"URL":"https:\/\/pubs.acs.org\/jaaucr\/article-pdf\/6\/9\/5068\/66538732\/jacsau.6c00738.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.acs.org\/jaaucr\/article-pdf\/6\/9\/5068\/66538732\/jacsau.6c00738.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T12:22:02Z","timestamp":1790598122000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.acs.org\/jaaucr\/article\/6\/9\/5068\/5255010\/Unlocking-Distinct-Excited-States-of-a-Nickel-II"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8,13]]},"references-count":128,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2026,8,13]]},"published-print":{"date-parts":[[2026,9,28]]}},"URL":"https:\/\/doi.org\/10.1021\/jacsau.6c00738","relation":{},"ISSN":["2691-3704"],"issn-type":[{"value":"2691-3704","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,8,13]]}}}