PATHWAYS OF PHOTOOXIDATION REACTION OF LEUCO MALACHITE GREEN

doi:10.7517/j.issn.1674-0475.1991.01.62

Abstract

Abstract: The photooxidation reaction of leuco malachite green (LMG) was studied. As naphthalene was added into solution of LMG in dioxane, an emission spectrum of the exciplex formed between excited LMG and naphthalene was determined. When indole was put in solution of LMG in acetonitrile, the fluorescence of LMG did not change, but its phosphorescence was quenched by indole, and photochemical reaction rate of LMG was decreased simultaneously. It is concluded that in the absence of an electron acceptor the triplet of LMG plays an important role in the photochemical reaction.

Key words: leucobase of malachite green, naphthalene, indole, exciplex, fluorescence and phosphorescence

LIU KUI-WEN, CHEN SHANG-XIAN. PATHWAYS OF PHOTOOXIDATION REACTION OF LEUCO MALACHITE GREEN[J]. Imaging Science and Photochemistry, 1991, 9(1): 62-66.

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PATHWAYS OF PHOTOOXIDATION REACTION OF LEUCO MALACHITE GREEN

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