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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.

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Petrov, Vesselin | Gavara, Raquel | Dangles, Olivier | Al Bittar, Sheiraz | Mora-Soumille, Nathalie | Pina, Fernando

Edité par CCSD ; Springer -

International audience. 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-β-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.

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