CONFIGURATION OF THE LOWEST TRIPLET OF KETOCOUMARINS

doi:10.7517/j.issn.1674-0475.1987.04.32

Imaging Science and Photochemistry ›› 1987, Vol. 5 ›› Issue (4): 32-36.DOI: 10.7517/j.issn.1674-0475.1987.04.32

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CONFIGURATION OF THE LOWEST TRIPLET OF KETOCOUMARINS

ZHANG JIAN-KE, Wu SHI-KANG

Institute of Photographic Chemistry, Acadcmia Siniea, Beijing

Received:1986-09-25 Revised:1987-03-20 Online:1987-11-20 Published:1987-11-20

Abstract

Abstract: In this work,the configuration of the lowest triplet of ketocoumarins was investigated. The results indicate that the lowest triplet of 3-benzoylcoumarin,p-dicoumaroyl-benzene and 3,3'-carbonylbiscoumarin have the character with n,π^* transition and the lowest triplet of 3-furoylcoumarin and 3-thenoylcoumarin have a mixing n,π^* and π,π^* character.

Key words: photosensitizer, triplet energy, phosphorescence spectra, triplet state energy, sensitizer, phosphorescence lifetime, ketocoumarin

ZHANG JIAN-KE, Wu SHI-KANG. CONFIGURATION OF THE LOWEST TRIPLET OF KETOCOUMARINS[J]. Imaging Science and Photochemistry, 1987, 5(4): 32-36.

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CONFIGURATION OF THE LOWEST TRIPLET OF KETOCOUMARINS

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