Organic Room-Temperature near-IR Phosphorescence Harvested by Intramolecular Through-Space Sensitization in Composite Molecules.

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Tác giả: Andrey Belyaev, Pi-Tai Chou, Toni Eskelinen, Chao-Hsien Hsu, Antti J Karttunen, Igor O Koshevoy, Iván Maisuls, Iida Partanen, Jarkko J Saarinen, Emily Hsue-Chi Shi, Cristian A Strassert

Ngôn ngữ: eng

Ký hiệu phân loại: 345.075 *Trial procedure (Courtroom procedure)

Thông tin xuất bản: Germany : Angewandte Chemie (International ed. in English) , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 742266

A family of coordination compounds with short intramolecular spatial separation between an organic chromophore and a metal center was studied. The specific geometry was realized by means of anthracene-functionalized tertiary aryl phosphanes. Their silver and gold complexes (1, 2) operate as conventional fluorophores, with photophysical behavior defined by anthracene-localized allowed transitions. In contrast, bichromophoric species, containing phenyl bipyridine- (3, 5, 6, 8) or terpyridine- (4, 7) derived platinum(II) fragments, demonstrate fast intersystem crossing to the triplet state associated with the pincer metal component. Theoretical results corroborated that the short intramolecular distance between the platinum constituent and the adjacent anthracene facilitates subsequent through-space triplet (T
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