Luminescent Molecular Copper(I) Alkynyl Open Cubes: Synthesis, Structural Characterization, Electronic Structure, Photophysics, and Photochemistry

Autor:	Vivian Wing-Wah Yam, C.W. Chan, Sam Wing-Kin Choi, Nianyong Zhu, Wai Han Lam, Eddie Chung-Chin Cheng, Kai-Leung Cheung
Rok vydání:	2006
Předmět:	Quenching (fluorescence) Photoluminescence Chemistry Organic Chemistry chemistry.chemical_element General Chemistry Electronic structure Crystal structure Photochemistry Triple bond Biochemistry Copper High Energy Physics::Experiment Density functional theory Nuclear Experiment Spectroscopy
Zdroj:	Chemistry – An Asian Journal. 1:273-286
ISSN:	1861-471X 1861-4728
DOI:	10.1002/asia.200600067
Popis:	A novel class of tetranuclear copper(I) alkynyl complexes with an "open-cube" structure was synthesized. The crystal structure of [Cu4{P(p-MeC6H4)3}4(mu3-eta(1),eta(1),eta(2)-C[triple bond]C-p-MeOC6H4)3]PF6 was determined. These complexes were found to display dual emission behavior. Through systematic comparison studies on the electronic absorption and photoluminescence properties of a series of [Cu4(PR3)4(mu3-eta(1),eta(1),eta(2)-C[triple bond]CR')3]+ complexes, together with density functional theory (DFT) calculations at the PBE1PBE level on the model complex [Cu4(PH3)4(mu3-eta(1),eta(1),eta(2)-C[triple bond]C-p-MeOC6H4)3]+, the nature of their emission origins was probed. Their photochemical properties were also investigated by oxidative quenching experiments and transient absorption spectroscopy.
Databáze:	OpenAIRE
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