THE PHOTO ISOMERIZATION REACTION OF BIS(BENZOXADYL) STILBENE(Ⅱ) THE EFFECT ON THE SOLVENT POLARITY

doi:10.7517/j.issn.1674-0475.2000.01.36

Imaging Science and Photochemistry ›› 2000, Vol. 18 ›› Issue (1): 36-41.DOI: 10.7517/j.issn.1674-0475.2000.01.36

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THE PHOTO ISOMERIZATION REACTION OF BIS(BENZOXADYL) STILBENE(Ⅱ) THE EFFECT ON THE SOLVENT POLARITY

JIANG Yongcai, WU Shikang

Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China

Received:1999-03-18 Revised:1999-05-17 Online:2000-02-20 Published:2000-02-20

Abstract

Abstract: The problem of photophysics, spectrum and photo-isomerization of bis(benzoxadyl) stilbene in different solvents were studied carefully. On the base of fluorescence quantum yield and lifetime measurement, the rate constants of radiation decay and non-radiation decay of this compound were calculated. It was found that in polar solvent the high fluorescence quantum yield was observed and the high rate of photo-isomerization was occured in the non polar solvents. The activation energy of photo-isomerization from trans-to cis-isomer of this compound was also measured in this work. Results obtained were discussed preliminary.

Key words: bis(benzoxadyl) stilbene, photo-isomerization, solvent effect

JIANG Yongcai, WU Shikang. THE PHOTO ISOMERIZATION REACTION OF BIS(BENZOXADYL) STILBENE(Ⅱ) THE EFFECT ON THE SOLVENT POLARITY[J]. Imaging Science and Photochemistry, 2000, 18(1): 36-41.

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THE PHOTO ISOMERIZATION REACTION OF BIS(BENZOXADYL) STILBENE(Ⅱ) THE EFFECT ON THE SOLVENT POLARITY

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