Study of Chemical Structure and of Photochemical Activity of Abiogenic Flavin Pigment

摘要: A product with molecular mass of 500–550 Da was isolated from a pigmented material formed by thermolysis (185°C) mixture glutamic acid, glycine, and lysine (the optimal molar ratio 8:3:1). After purification chromatography the spectra absorption luminescence as well IR- PMR-spectra pigment were studied. Based on obtained data, identified structural analogue biological flavins: isoalloxazine heterocycle two hydroxyl groups substitute amino acid nature. Like natural flavins, abiogenic photosensitized in solution both anaerobic aerobic reactions electron transfer donors (ascorbate, Na2-EDTA) to acceptors (redox- sensitive dyes, nicotinamide, Mo(IV) ), rate practically identical that case use riboflavin. The ability flavin riboflavin photosensitize redox preserved after their molecules particles clay minerals (kaolinite, bentonite, celite) ; however, affected individual photochemical reactions.