Journal
DYES AND PIGMENTS
Volume 91, Issue 3, Pages 466-473Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2011.03.025
Keywords
Dicyanoimidazole; Chromophores; Absorption; Fluorescence; Quantum yield; Push-pull
Funding
- Czech Ministry of Education Youth and Sports [VZ MSMT No 0021627501]
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Absorption and fluorescence spectra and fluorescence quantum yields of 18 D-;pi-A push-pull compounds were measured. The investigated chromophores consist of 4,5-dicyanoimidazole - bearing donor - substituted and systematically extended it-conjugated spacers. The influence of temperature and solvent polarity on the spectral and photophysical properties was investigated. Employing INDO/S calculations, the structure property relationships were discussed. (C) 2011 Elsevier Ltd. All rights reserved.
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