Some Important Factors in the Photodimerization Reaction of α,ω-Biscoumarin Long Chain Compounds

Abstract

Abstract: The effects of salt,solvent, viscosity and the effects of length, flexibility of spacer between chromophores on the photodimerization reaction of α,ω-biscoumarin long chain polyether compounds have been studied in this work.With the aids of UVabsorption,fluorescence and ¹H NMRspectra,the conformation of the title compounds under different conditions was analyzed. Based on the results obtained,the behavior of photodimerization of these compounds in different cases was discussed and explained.

Key words: Salt effect, Solvent effect, Viscosity effect, Photodimrization

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LIU Tain-Jun, WU Shi-Kang. Some Important Factors in the Photodimerization Reaction of α,ω-Biscoumarin Long Chain Compounds[J]. Chem. J. Chinese Universities, 1996, 17(11): 1754.

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Some Important Factors in the Photodimerization Reaction of α,ω-Biscoumarin Long Chain Compounds

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