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Article: Toward the Design of Phosphorescent Emitters of Cyclometalated Earth-Abundant Nickel(II) and Their Supramolecular Study

TitleToward the Design of Phosphorescent Emitters of Cyclometalated Earth-Abundant Nickel(II) and Their Supramolecular Study
Authors
Issue Date2020
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jacsat/index.html
Citation
Journal of the American Chemical Society, 2020, v. 142 n. 16, p. 7638-7646 How to Cite?
AbstractA series of cyclometalating tridentate N^C^N and tetradentate N^C^N^O ligand-containing complexes of earth-abundant nickel(II) has been designed and synthesized. Among them, the carbazolylnickel(II) complex demonstrates, for the first time, an orange color room-temperature luminescence. Such a complex is also found to exhibit intense luminescence with excited state lifetimes in the submicrosecond regime at 77 K, suggesting the triplet nature of the emissive state. Meanwhile, the self-assembly property of the tetradentate ligand-containing nickel(II) complex in solution has been investigated. Owing to its nearly perfect square planar geometry, as evidenced by X-ray crystal structure determination, it is found to exhibit self-assembly properties with the aid of π–π interactions and possibly weak Ni···Ni interactions, which have been supported by DFT calculations and NCI plot. Indeed, the ground-state aggregation behavior of this complex has been confirmed by concentration-dependent UV–vis absorption spectroscopy. Moreover, in the solution-induced aggregation studies, upon the addition of nonsolubilizing solvents, the emergence of low-energy absorption bands has been realized, and such a complex is found to demonstrate interesting self-assembly behaviors to offer well-defined and highly ordered supramolecular architectures.
Persistent Identifierhttp://hdl.handle.net/10722/286158
ISSN
2019 Impact Factor: 14.612
2015 SCImago Journal Rankings: 7.123
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWong, YS-
dc.contributor.authorTang, MC-
dc.contributor.authorNg, M-
dc.contributor.authorYam, VWW-
dc.date.accessioned2020-08-31T06:59:57Z-
dc.date.available2020-08-31T06:59:57Z-
dc.date.issued2020-
dc.identifier.citationJournal of the American Chemical Society, 2020, v. 142 n. 16, p. 7638-7646-
dc.identifier.issn0002-7863-
dc.identifier.urihttp://hdl.handle.net/10722/286158-
dc.description.abstractA series of cyclometalating tridentate N^C^N and tetradentate N^C^N^O ligand-containing complexes of earth-abundant nickel(II) has been designed and synthesized. Among them, the carbazolylnickel(II) complex demonstrates, for the first time, an orange color room-temperature luminescence. Such a complex is also found to exhibit intense luminescence with excited state lifetimes in the submicrosecond regime at 77 K, suggesting the triplet nature of the emissive state. Meanwhile, the self-assembly property of the tetradentate ligand-containing nickel(II) complex in solution has been investigated. Owing to its nearly perfect square planar geometry, as evidenced by X-ray crystal structure determination, it is found to exhibit self-assembly properties with the aid of π–π interactions and possibly weak Ni···Ni interactions, which have been supported by DFT calculations and NCI plot. Indeed, the ground-state aggregation behavior of this complex has been confirmed by concentration-dependent UV–vis absorption spectroscopy. Moreover, in the solution-induced aggregation studies, upon the addition of nonsolubilizing solvents, the emergence of low-energy absorption bands has been realized, and such a complex is found to demonstrate interesting self-assembly behaviors to offer well-defined and highly ordered supramolecular architectures.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jacsat/index.html-
dc.relation.ispartofJournal of the American Chemical Society-
dc.titleToward the Design of Phosphorescent Emitters of Cyclometalated Earth-Abundant Nickel(II) and Their Supramolecular Study-
dc.typeArticle-
dc.identifier.emailTang, MC: kobetang@hku.hk-
dc.identifier.emailNg, M: mkyng@hku.hk-
dc.identifier.emailYam, VWW: wwyam@hku.hk-
dc.identifier.authorityYam, VWW=rp00822-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jacs.0c02172-
dc.identifier.pmid32275398-
dc.identifier.scopuseid_2-s2.0-85083322498-
dc.identifier.hkuros313084-
dc.identifier.volume142-
dc.identifier.issue16-
dc.identifier.spage7638-
dc.identifier.epage7646-
dc.identifier.isiWOS:000529156100052-
dc.publisher.placeUnited States-
dc.identifier.issnl0002-7863-

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