(S sub(2) arrow right S sub(0)) and (S sub(1) arrow right S sub(0)) luminescence of dimethylaminostyryl- beta -diketonates of boron difluoride

• Published in: Dyes and pigments Vol. 109; pp. 181 - 188
• Main Authors: Fedorenko, Elena V, Mirochnik, Anatoliy G, Beloliptsev, Anton Yu, Isakov, Vladimir V
• Format: Journal Article
• Language: English
• Published: 01-10-2014
• Subjects: Band spectra; Boron; Difluorides; Dyes; Luminescence; Quantum chemistry; Spectra; Spectroscopy
• ISSN: 0143-7208
• DOI: 10.1016/j.dyepig.2014.04.016

Spectral-luminescence properties of several dimethylaminostyryl- beta -diketonates of boron difluoride with different alpha -substituents have been investigated through stationary and time-resolved spectroscopy. Quantum chemistry studies of the structure of excited states of 2,2-difluoro-4-(4'-dimethylaminostyryl)-6-phenyl-1,3,2-dioxa borine have been performed. Two luminescence centers have been revealed for the compound under study: an intensive band in the red-orange region of the spectrum caused by an S sub(1)-S sub(0) transition and a short-wave luminescence in the blue region of the spectrum caused by an S sub(2)-S sub(0) transition.