SYNTHESIS AND PHOTOCHROMISM OF N-PHENYL-2, 3-BIS-[3-(1-ETHYL- 2-METHYLINDOYL)]-MALEIMIDE

doi:10.7517/j.issn.1674-0475.1995.02.161

Imaging Science and Photochemistry ›› 1995, Vol. 13 ›› Issue (2): 161-165.DOI: 10.7517/j.issn.1674-0475.1995.02.161

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SYNTHESIS AND PHOTOCHROMISM OF N-PHENYL-2, 3-BIS-[3-(1-ETHYL- 2-METHYLINDOYL)]-MALEIMIDE

YU LIAN-HE¹, ZHAO WEI-LI¹, FAN MEI-GONG¹, ZHU ZI-QIANG²

1. Institute of Photographic Chemistry, The Chinese .Academy of Sciences, Beijing 100101, P. R. China;
2. Department of Physics, Henan University, Kaifeng 475001, P. R. China

Received:1994-07-04 Revised:1994-09-15 Online:1995-05-20 Published:1995-05-20

Abstract

Abstract: N-phenyl-2,3-bis- [3-(1-ethyl-2-methyl-indoyl)]-maleimide (Compound I)was synthesized and its structure was characterized. Photochromic Property of compound I was examined by steady state and laser flash photolysis techniques. The resuhs indicate that, withthe excitation of 248nm laser pulse, I shows photochromisrn in acetonitrile, and the transientabsorption of the photopreduct was observed (λ_max= 610nm), but in steady state experiment, no photochromic product of I can be detected after irradiation with either 366nm or450nm light. The reason is probably that the photopreduct is unstable, in other words, itslifetime is too short to be detected with steady state method.

Key words: synthesis, maleimide, photochromism, transient absorption spectra

YU LIAN-HE, ZHAO WEI-LI, FAN MEI-GONG, ZHU ZI-QIANG. SYNTHESIS AND PHOTOCHROMISM OF N-PHENYL-2, 3-BIS-[3-(1-ETHYL- 2-METHYLINDOYL)]-MALEIMIDE[J]. Imaging Science and Photochemistry, 1995, 13(2): 161-165.

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SYNTHESIS AND PHOTOCHROMISM OF N-PHENYL-2, 3-BIS-[3-(1-ETHYL- 2-METHYLINDOYL)]-MALEIMIDE

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