Bi- and tetranuclear Cu(I) complexes based on tris(6-methyl-2-pyridyl)phosphine: Synthesis and photophysical study

Bi- and tetranuclear Cu(I) complexes based on tris(6-methyl-2-pyridyl)phosphine: Synthesis and photophysical study Научная публикация

Журнал

Inorganic Chemistry Communications
ISSN: 1387-7003

Вых. Данные

Год: 2024, Том: 169, Номер статьи : 113062, Страниц : DOI: 10.1016/j.inoche.2024.113062

Ключевые слова

Cu(I) complexes Tris(6-methyl-2-pyridyl)phosphine All-in-one complexes Room-temperature phosphorescence Thermally activated delayed fluorescence

Авторы

Demyanov Yan V. ¹ , Bagryanskaya Irina Yu. ² , Rakhmanova Marianna I. ¹ , Artem’ev Alexander V. ¹

Организации

1	Nikolaev Institute of Inorganic Chemistry
2	N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, SB RAS

Highlights • Tris(6-methyl-2-pyridyl)phosphine (L) reacts with Cu(I) halides to afford two neutral [Cu2Cl2L2], [Cu4I4L2] and two zwitterionic complexes [Cu4Hal4L2(MeCN)2] (Hal = Br and I). • The structure of the obtained complexes is discussed. • The presented complexes emit phosphorescence at ambient temperature. Abstract A series of luminescent Cu(I) complexes has been synthesized by the reactions between tris(6-methyl-2-pyridyl)phosphine (L) and Cu(I) halides. The reaction of L with CuCl in CH2Cl2 forms a binuclear complex [Cu2Cl2L2], while CuI under the same conditions unexpectedly affords the tetranuclear neutral [Cu4I4L2] complex. At the same time, the interaction of CuBr or CuI with L in MeCN medium unexpectedly gives rare co-called «All-in-One» complexes [Cu4Hal4L2(MeCN)2] (Hal = Br and I). At ambient temperature, the above compounds display a solid-state luminescence (λmax = 535–565 nm) with emission lifetimes of 1.8–6.9 μs, and the quantum efficiency of up to 80 %.

Demyanov Y.V. , Bagryanskaya I.Y. , Rakhmanova M.I. , Artem’ev A.V.
Bi- and tetranuclear Cu(I) complexes based on tris(6-methyl-2-pyridyl)phosphine: Synthesis and photophysical study
Inorganic Chemistry Communications. 2024. V.169. 113062 . DOI: 10.1016/j.inoche.2024.113062

Поступила в редакцию:	14 июн. 2024 г.
Принята к публикации:	27 авг. 2024 г.
Опубликована online:	31 авг. 2024 г.
Опубликована в печати:	1 сент. 2024 г.

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