Bulletin of the Chemical Society of Japan

Photoisomerization and fluorescence properties of hemiindigo compounds having intramolecular hydrogen bonding

M Ikegami, T Arai

Index: Ikegami, Masashi; Arai, Tatsuo Bulletin of the Chemical Society of Japan, 2003 , vol. 76, # 9 p. 1783 - 1792

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Citation Number: 16

Abstract

Intramolecularly hydrogen bonded hemiindigo compounds 2–4 were prepared and their photochemical behavior was investigated. Z-2 did not undergo isomerization, while 3 underwent isomerization mutually between the Z-isomer and E-isomer in solution to exhibit a color change between greenish yellow and reddish orange in benzene. Introduction of a formyl group at the 2-position of the pyrrole ring of 3 brought about the increase in the ...