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The Ni<jats:sup>II<\/jats:sup>(MB\u2010DIPY), <jats:bold>6<\/jats:bold><jats:sup>\u2022<\/jats:sup> shows absorption at \u223c1300\u00a0nm and a g\u2010value of \u223c2.00 in EPR. The redox features of Ni<jats:sup>II<\/jats:sup>(MB\u2010DIPY) were studied by electro\u2010 and spectroelectrochemistry. The reduced form, <jats:bold>6<jats:sup>\u2010<\/jats:sup><\/jats:bold>, has an intense NIR absorption and a broad spectrum in the visible region, making this compound a prospective non\u2010fullerene acceptor for light\u2010harvesting. The axial coordination and photophysical properties of the supramolecular dyad formed between pyridine\u2010appended Ni<jats:sup>II<\/jats:sup>(MB\u2010DIPY) with zinc 5,10,15,20\u2010tetrakis\u2010(pentafluorophenyl)porphyrin (TPP<jats:sup>F20<\/jats:sup>Zn) were also studied. Ni<jats:sup>II<\/jats:sup>(MB\u2010DIPY) <jats:bold>6<\/jats:bold><jats:sup>\u2022<\/jats:sup> failed to interact with TPP<jats:sup>F20<\/jats:sup>Zn. However, reduced Ni<jats:sup>II<\/jats:sup>(MB\u2010DIPY) in its anionic form, <jats:bold>6<jats:sup>\u2010<\/jats:sup><\/jats:bold>, self\u2010assembles and forms a donor\u2010acceptor dyad with TPP<jats:sup>F20<\/jats:sup>Zn with a binding constant of K<jats:sub>a<\/jats:sub>\u00a0=\u00a01.13 \u00d7 10<jats:sup>2<\/jats:sup>\u00a0M<jats:sup>\u22121<\/jats:sup> and fluorescence quenching constant of K<jats:sub>SV<\/jats:sub>\u00a0=\u00a01.31 \u00d7 10<jats:sup>3<\/jats:sup>\u00a0M<jats:sup>\u22121<\/jats:sup>. This work represents the first report on the potential of MB\u2010DIPYs to self\u2010assemble and form a donor\u2010acceptor type supramolecular dyad with TPP<jats:sup>F20<\/jats:sup>Zn. This study explored the potential of the MB\u2010DIPYs to act as a non\u2010fullerene acceptor in light\u2010harvesting supramolecular donor\u2010acceptor systems formed via non\u2010covalent interactions.<\/jats:p>","DOI":"10.1002\/asia.202500694","type":"journal-article","created":{"date-parts":[[2025,6,17]],"date-time":"2025-06-17T06:54:23Z","timestamp":1750143263000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Radical and Redox Forms of Pyridyl Appended MB\u2010DIPYs"],"prefix":"10.1002","volume":"20","author":[{"given":"Dijo","family":"Prasannan","sequence":"first","affiliation":[{"name":"Department of Chemistry University of Tennessee  Knoxville TN 37996\u20101600 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuriy V.","family":"Zatsikha","sequence":"additional","affiliation":[{"name":"Department of Chemistry Taras Shevchenko National University of Kyiv  Volodymyrska Street 60 Ky\u00efv 01601 Ukraine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4345-0848","authenticated-orcid":false,"given":"Victor N.","family":"Nemykin","sequence":"additional","affiliation":[{"name":"Department of Chemistry University of Tennessee  Knoxville TN 37996\u20101600 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,6,17]]},"reference":[{"key":"e_1_2_9_1_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.270.5243.1789"},{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.258.5087.1474"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp9612745"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp9818885"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1099-0690(199910)1999:10<2445::AID-EJOC2445>3.0.CO;2-G"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp9714734"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1021\/ic981358n"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1521-3765(19980310)4:3<406::AID-CHEM406>3.0.CO;2-#"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.19970090704"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja9915605"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.snb.2016.05.055"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpclett.2c02388"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jorganchem.2019.03.004"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpcc.8b09504"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.inorgchem.6b00992"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201901225"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1142\/S1088424615500947"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1039\/C7DT00472A"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.1021\/ol062666p"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1039\/C0CP01178A"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.463854"},{"key":"e_1_2_9_22_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.464084"},{"key":"e_1_2_9_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/0009-2614(91)90475-O"},{"key":"e_1_2_9_24_1","first-page":"53","volume-title":"The Fullerenes New Horizons for the Chemistry, Physics and Astrophysics of Carbon","author":"Haddon R. 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