SOLVENT EFFECTS ON THE FLUORESCENCE PROPERTIES OF TRIPHENODIOXAZINES

doi:10.7517/j.issn.1674-0475.1990.02.145

Abstract

Abstract: The fluoiescence spectra of two triphenodioxazines in 18 solvents were studied.The fluorescence quantum yields of the compounds were calculated.It was found thatthe ν_max^F of the fluorescence spectra of the compounds varied linearly with the (n²-1)/(2n²+1) and E_T(30) of the solvents.The Stokes’ shifts vs of the fluorescence spectra of the compounds varied linearly with the E_T(30) of the solvents.The hydrogen bonding interaction between the alcohol solvents and the solutes and the "external heavy atom effects" of the halogenated solvents decreased the fluorescence quantum yields of the compounds.

Key words: triphenodioxazine, fluorescence, solvent effect, Stokes’ shift, quantum yield

CHEN SHU-LING, ZHU ZHENG-HUA, CHEN KONG-CHANG. SOLVENT EFFECTS ON THE FLUORESCENCE PROPERTIES OF TRIPHENODIOXAZINES[J]. Imaging Science and Photochemistry, 1990, 8(2): 145-148.

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SOLVENT EFFECTS ON THE FLUORESCENCE PROPERTIES OF TRIPHENODIOXAZINES

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