Polarized absorption spectra and configuration analyses of xanthene and xanthone.

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概要

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• The polarized absorption sepctra of xanthene and xanthone were measured in stretched poly (vinyl alcohol) films, and the polarization direction of each electronic transition was determined. It was confirmed that xanthone has the short molecular-axis polarized bands (<SUP>1</SUP>A<SUB>1</SUB>←<SUP>1</SUP>A<SUB>1</SUB>) at 343, 260, and 226 nm, and the long molecular-axis polarized ones (<SUP>1</SUP>BA<SUB>2</SUB>←<SUP>1</SUP>A<SUB>1</SUB>) at 290, 266, and 242 nm. The electronic transitions of xanthone are discussed in connection with those of xanthene by use of the configuration analysis. For the 266 and 260 nm bands, the contributions of the intramolecular charge transfer character from the xanthene skeleton to the carbonyl group are considerable.

• 公益社団法人 日本化学会の論文

著者

• Minegishi Tsuneyuki

  Department of Chemistry, Tokyo Institute of Technology

関連論文

• Polarized absorption spectra and configuration analyses of xanthene and xanthone.

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