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The Intrinsic 3 [dσ*pσ] Emission of Binuclear Gold( I ) Complexes with Two Bridging Diphosphane Ligands Lies in the Near UV; Emissions in the Visible Region Are Due to Exciplexes
Author(s) -
Fu WenFu,
Chan KwokChu,
Miskowski Vincent M.,
Che ChiMing
Publication year - 1999
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19990917)38:18<2783::aid-anie2783>3.0.co;2-i
Subject(s) - bridging (networking) , photochemistry , chemistry , visible spectrum , materials science , optoelectronics , computer science , computer network
A near‐UV triplet emission from [Au 2 (dcpm) 2 ](ClO 4 ) 2 has been discovered. Studies on the spectroscopic properties of the complexes [Au 2 (dcpm) 2 ]Y 2 (Y=ClO 4 − , PF 6 − , CF 3 SO 3 − , [Au(CN) 2 ] − , Cl − , and I − ; dcpm=bis(dicyclohexylphosphanyl)methane) support the assignment of the high‐energy emissions at 360–368 nm to the 3 [dσ*pσ] excited state, adducts of which exhibit exciplex emissions in the visible region with solvent or counterions (see schematic diagram).