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Updated: Jan 5, 2026

Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
A Sublimable Dinuclear Cuprous Complex Showing Selective Luminescence Vapochromism in the Crystalline State
Xing-Wei Chen1,2, Hua-Li Yuan1, Li-Hua He1
1School of Chemistry and Chemical Engineering , Jiangxi University of Science and Technology , Ganzhou 341000 , People's Republic of China.
Abstract:
A new sublimable dicopper(I) complex bearing 1,2-bis(diphenylphosphino)ethane and 5-trifluoromethyl-3-(2'-pyridyl)pyrazolate ligands has been designed and synthesized, and its crystalline solvated and nonsolvated compounds have also been obtained and investigated. It is shown that only the crystalline solvated compound exhibits reversible and selective luminescence vapochromism, arising from its unique "pyridyl/CH2Cl2/pyridyl" organic sandwich-like stacking arrangement revealed by X-ray crystallography, as supported by time-dependent density functional theory calculations. Additionally, the neutral Cu(I) complex has excellent thermal stability and sublimability, good solid-state luminescence properties, and TADF character, and it is suggested to be a good emitter for vapor-deposited organic light-emitting diodes.
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