A flash photolysis and stopped-flow spectroscopy study of 3 ',4 '-dihydroxy-7-O-beta-D-glucopyranosyloxyflavylium chloride, an anthocyanin analogue exhibiting efficient photochromic properties

作者:Petrov Vesselin; Gavara Raquel; Dangles Olivier*; Al Bittar Sheiraz; Mora Soumille Nathalie; Pina Fernando
来源:Photochemical and Photobiological Sciences, 2013, 12(3): 576-581.
DOI:10.1039/c2pp25329a

摘要

The complete determination of all rate and equilibrium constants of the network of reversible chemical reactions involving the anthocyanin analogue, 3',4'-dihydroxy-7-O-beta-D-glucopyranosyloxyflavylium chloride, was achieved by means of UV-visible spectroscopy, flash photolysis and pH jumps monitored by stopped-flow. An energy level diagram containing all the data was obtained. A detailed step by step procedure illustrating all the calculations is reported.

  • 出版日期2013