Network reaction of 2,6-bis(2-hydroxybenzilidene)cyclohexanone by external stimuli
作者： Ana-Maria Pana , Valentin Badea , Radu Bănică , Alina Bora , Zoltan Dudas
DOI: 10.1016/J.JPHOTOCHEM.2014.03.008
关键词:
摘要: Abstract The pH-dependent photochromic behaviour of a curcumin analogue, 2,6-bis(2-hydroxybenzilidene)cyclohexanone (HBC) has been investigated. identification stable and unstable species from network reaction was done by combination NMR, UV–vis fluorescence spectroscopy. structure established 13C 1H NMR 2D spectra: DQF-COSY, HSQC HMBC. results indicate that HBC could be used as pH sensor on 1–5 scale. Experimental were correlated theoretical calculations using ZINDO/S/CI semi-empirical methods. exhibits fluorescent properties both in acidic neutral media basic environment the is quenched.
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