{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T15:58:59Z","timestamp":1791302339097,"version":"4.1.0"},"reference-count":41,"publisher":"American Chemical Society (ACS)","issue":"39","license":[{"start":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T00:00:00Z","timestamp":1790035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["2021R1A2C2007664"],"award-info":[{"award-number":["2021R1A2C2007664"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["RS-2025-02214848"],"award-info":[{"award-number":["RS-2025-02214848"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,10,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>In recent years, considerable attention has been devoted to supramolecular architectures such as helical fibers, tubules, and nanotoroids (nanorings) owing to their unique physical properties. In this study, we synthesized a bipyridine-based Pt(II) complex bearing two chloride ions that act as a bidentate ligand. Interestingly, the resulting mononuclear bipyridine-based Pt(II) complex (PtCl2-L1) self-assembles into two-dimensional sheet-like supramolecular polymers. The monomeric PtCl2-L1 exhibits distinct spectroscopic behaviors depending on the composition of DMSO\/H2O mixed solvents. When the water fraction exceeds 30%, PtCl2-L1 undergoes supramolecular polymerization. In particular, well-defined two-dimensional sheet-like structures are formed in a DMSO\/H2O mixture (7:3, v\/v). The resulting supramolecular polymer readily dissociates into monomeric species upon the addition of acetonitrile, demonstrating the reversible nature of the assembly process. Furthermore, the 2D sheet-like structures exhibit photoluminescence at 440 nm, which can be attributed to metal-to-ligand charge transfer (MLCT). The non-sigmoidal transition observed in the absorbance changes as a function of solvent composition was analyzed using a global fitting method, allowing determination of the intrinsic Gibbs free energy of the supramolecular polymerization. In addition, the conformers of the monomeric species and tetramers were investigated by density functional theory (DFT) calculations. The optimized geometries of a trimeric assembly of PtCl2-L1 were further simulated at the semi-empirical QM\/PM6 level.<\/jats:p>","DOI":"10.1021\/acsomega.6c08967","type":"journal-article","created":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T11:02:10Z","timestamp":1790074930000},"page":"60429-60437","source":"Crossref","is-referenced-by-count":0,"title":["Two-Dimensional\nSheet-like Supramolecular Polymers\nfrom a Pt(II)-Coordinated Bipyridine Complex in Aqueous Solution"],"prefix":"10.1021","volume":"11","author":[{"given":"Hyewon","family":"Jeon","sequence":"first","affiliation":[{"name":"Gyeongsang National University , , ,","place":["Jinju, Republic of Korea, 52828"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yumi","family":"Park","sequence":"additional","affiliation":[{"name":"Gyeongsang National University , , ,","place":["Jinju, Republic of Korea, 52828"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Minju","family":"Nam","sequence":"additional","affiliation":[{"name":"Gyeongsang National University , , ,","place":["Jinju, Republic of Korea, 52828"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sukyoung","family":"Kim","sequence":"additional","affiliation":[{"name":"Gyeongsang National University , , ,","place":["Jinju, Republic of Korea, 52828"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sohyeon","family":"Kwon","sequence":"additional","affiliation":[{"name":"Hannam University , , ,","place":["Daejeon, Republic of Korea, 304054"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haeri","family":"Lee","sequence":"additional","affiliation":[{"name":"Hannam University , , ,","place":["Daejeon, Republic of Korea, 304054"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heekyoung","family":"Choi","sequence":"additional","affiliation":[{"name":"Kyoto University , , , ,","place":["Uji, Kyoto, Japan, 611-0011"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8936-2272","authenticated-orcid":true,"given":"Jong Hwa","family":"Jung","sequence":"additional","affiliation":[{"name":"Gyeongsang National University , , ,","place":["Jinju, Republic of Korea, 52828"]},{"name":"Gyeongsang National University , , ,","place":["Jinju, Republic of Korea, 52828"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,9,22]]},"reference":[{"key":"2026100610495840200_cit1","doi-asserted-by":"publisher","first-page":"4071","DOI":"10.1021\/cr990125q","article-title":"Supramolecular Polymers","volume":"101","author":"Brunsveld","year":"2001","journal-title":"Chem. 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Chem."},{"key":"2026100610495840200_cit5","doi-asserted-by":"publisher","first-page":"13915","DOI":"10.1021\/acs.chemrev.1c00712","article-title":"Peptide\nDesign and Self-Assembly into Targeted Nanostructure and Functional\nMaterials","volume":"121","author":"Sinha","year":"2021","journal-title":"Chem. Rev."},{"key":"2026100610495840200_cit6","doi-asserted-by":"publisher","first-page":"1928","DOI":"10.1021\/acs.accounts.7b00176","article-title":"Cooperativity\nScale: A Structure\u2013Mechanism\nCorrelation in the Self-Assembly of Benzene-1,3,5-tricarboxamides","volume":"50","author":"Kulkarni","year":"2017","journal-title":"Acc. Chem. Res."},{"key":"2026100610495840200_cit7","doi-asserted-by":"publisher","first-page":"837","DOI":"10.1021\/acsmacrolett.1c00296","article-title":"Kinetically Controlling\nthe Length of Self-Assembled\nPolymer Nanofibers Formed by Intermolecular Hydrogen Bonds","volume":"10","author":"Gruschwitz","year":"2021","journal-title":"ACS Macro Lett."},{"key":"2026100610495840200_cit8","doi-asserted-by":"publisher","first-page":"962","DOI":"10.1021\/acs.chemrev.5b00188","article-title":"Perylene Bisimide Dye Assemblies\nas Archetype Functional Supramolecular Materials","volume":"116","author":"Wu\u0308rthner","year":"2016","journal-title":"Chem. Rev."},{"key":"2026100610495840200_cit9","doi-asserted-by":"publisher","first-page":"6757","DOI":"10.1039\/D0CC02787A","article-title":"Controlled Supramolecular Polymerization of \u03c0-Systems","volume":"56","author":"Ghosh","year":"2020","journal-title":"Chem. 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Ed."},{"key":"2026100610495840200_cit13","doi-asserted-by":"publisher","first-page":"945","DOI":"10.1016\/j.chempr.2020.01.021","article-title":"Controlled Synthesis\nof PdII and PtII Supramolecular Copolymer with Sequential Multiblock\nand Amplified Phosphorescence","volume":"6","author":"Wan","year":"2020","journal-title":"Chem."},{"key":"2026100610495840200_cit14","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1007\/128_2007_134","article-title":"Photochemistry\nand Photophysics of Coordination Compounds: Platinum","volume-title":"Photochemistry and Photophysics of Coordination Compounds\nII","author":"Williams","year":"2007"},{"key":"2026100610495840200_cit15","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/128_2007_132","article-title":"Photochemistry\nand Photophysics of Coordination Compounds: Overview and General Concepts","volume-title":"Photochemistry and Photophysics of Coordination Compounds\nI","author":"Balzani","year":"2007"},{"key":"2026100610495840200_cit16","doi-asserted-by":"publisher","first-page":"5721","DOI":"10.1021\/ja01023a012","article-title":"Electronic Structures of Square-Planar Complexes","volume":"90","author":"Mason","year":"1968","journal-title":"J. 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Commun."},{"key":"2026100610495840200_cit28","doi-asserted-by":"publisher","first-page":"1917","DOI":"10.1039\/D3NA01140B","article-title":"Controlling\nSupramolecular Copolymerization of Alkynylplatinum(II) Terpyridine\nComplexes: From Isodesmic to Cooperative Mechanisms","volume":"6","author":"Kim","year":"2024","journal-title":"Nanoscale Adv."},{"key":"2026100610495840200_cit29","doi-asserted-by":"publisher","first-page":"11844","DOI":"10.1073\/pnas.1712827114","article-title":"Living Supramolecular\nPolymerization Achieved by Collaborative Assembly of Platinum(II)\nComplexes and Block Copolymers","volume":"114","author":"Zhang","year":"2017","journal-title":"Proc. Natl.\nAcad. Sci. U.S.A."},{"key":"2026100610495840200_cit30","doi-asserted-by":"publisher","DOI":"10.1002\/smll.202503480","article-title":"Multistage Activation\nBarriers in the Chiral Metallosupramolecular Polymerization of Alkynylplatinum(II)\nComplexes","volume":"21","author":"Go","year":"2025","journal-title":"Small"},{"key":"2026100610495840200_cit31","doi-asserted-by":"publisher","first-page":"18132","DOI":"10.1002\/chem.201603467","article-title":"A Phosphorescent\nPlatinum(II) Bipyridyl Supramolecular Polymer Based on Quadruple Hydrogen\nBonds","volume":"22","author":"Liu","year":"2016","journal-title":"Chem.\u2500Eur. J."},{"key":"2026100610495840200_cit32","doi-asserted-by":"publisher","first-page":"1312","DOI":"10.1002\/chem.201103030","article-title":"Synthesis and Photophysical\nProperties of Self-Assembled\nMetallogels of Platinum(II) Acetylide Complexes with Elaborate Long-Chain\nPyridine-2,6-Dicarboxamides","volume":"18","author":"Chang","year":"2012","journal-title":"Chem.\u2500Eur.\nJ."},{"key":"2026100610495840200_cit33","doi-asserted-by":"publisher","first-page":"2799","DOI":"10.1039\/D5PY00315F","article-title":"Supramolecular Polymerization and Self-Assembly of\nTransition Metal Complexes","volume":"16","author":"Stu\u0308hler","year":"2025","journal-title":"Polym. Chem."},{"key":"2026100610495840200_cit34","doi-asserted-by":"publisher","first-page":"5236","DOI":"10.1039\/D1SC00416F","article-title":"Tuning energy landscapes and metal\u2013metal\ninteractions in supramolecular polymers regulated by coordination\ngeometry","volume":"12","author":"Ba\u0308umer","year":"2021","journal-title":"Chem. Sci."},{"key":"2026100610495840200_cit35","doi-asserted-by":"publisher","DOI":"10.1002\/chem.202403287","article-title":"Pathway-Dependent Metallosupramolecular\nPolymerization\nRegulated by Ligand Geometry","volume":"30","author":"Sutar","year":"2024","journal-title":"Chem.\u2500Eur.\nJ."},{"key":"2026100610495840200_cit36","doi-asserted-by":"publisher","first-page":"721","DOI":"10.1039\/C9SC04958D","article-title":"Kinetically\nControlled Ag+-Coordinated Chiral Supramolecular Polymerization\nAccompanying a Helical Inversion","volume":"11","author":"Choi","year":"2020","journal-title":"Chem. 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