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Dicopper(I) Paddle-Wheel Complexes with Thermally Activated Delayed Fluorescence Adjusted by Ancillary Ligands Научная публикация

Журнал Inorganic Chemistry
ISSN: 0020-1669 , E-ISSN: 1520-510X
Вых. Данные Год: 2020, Том: 59, Номер: 15, Страницы: 10699-10706 Страниц : 8 DOI: 10.1021/acs.inorgchem.0c01171
Авторы Artem’ev Alexander V. 1 , Davydova Maria P. 1 , Berezin Alexey S. 1 , Ryzhikov Maxim R. 1 , Samsonenko Denis G. 1
Организации
1 Nikolaev Institute of Inorganic Chemistry, 3, Acad. Lavrentiev Avenue, Novosibirsk 630090, Russian Federation

Реферат: A suite of paddle-wheel shaped [Cu2(PymPPh2)3(Lan)n](PF6)2 complexes showing efficient thermally activated delayed fluorescence (TADF) has been synthesized. In these complexes, Cu(I) ions are P,N-bridged by three diphenyl(2-pyrimidyl)phosphine (PymPPh2, L) ligands in a “head-to-tail” fashion, and one or both metals are also capped by the ancillary ligand (Lan = MeOH, Me2CO, MeCN, PhCN). At ambient temperature, the solid complexes emit TADF with the quantum yield of up to 85% and the lifetimes of from 9.6 to 27 μs. The ancillary ligands, whose orbitals negligibly contribute to the radiative 1(M + L + Lan)LCT state, remarkably adjust emission energies and ΔE(S1–T1) energy splitting magnitudes of the emitters obtained. Thus, depending on structure and/or number of the Lan molecules, the emission maxima vary from 500 to 563 nm, and the ΔE(S1–T1) gaps range 550–1100 cm–1. Such tunable TADF characteristics coupled with the excellent solubility and air-stability make the complexes presented to be promising TADF materials.
Библиографическая ссылка: Artem’ev A.V. , Davydova M.P. , Berezin A.S. , Ryzhikov M.R. , Samsonenko D.G.
Dicopper(I) Paddle-Wheel Complexes with Thermally Activated Delayed Fluorescence Adjusted by Ancillary Ligands
Inorganic Chemistry. 2020. V.59. N15. P.10699-10706. DOI: 10.1021/acs.inorgchem.0c01171 WOS Scopus OpenAlex
Даты:
Поступила в редакцию: 21 апр. 2020 г.
Опубликована online: 20 июл. 2020 г.
Идентификаторы БД:
Web of science: WOS:000558727500035
Scopus: 2-s2.0-85089454940
OpenAlex: W3042516810
Цитирование в БД:
БД Цитирований
OpenAlex 44
Scopus 44
Web of science 46
Альметрики: