Comparison of the Electronic Spectra of Geometric Isomers. III. β-Substituted Styrenes
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概要
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The ultraviolet absorption spectra of <I>cis</I> and <I>trans</I> isomers of various β-substituted styrenes have been measured both in the gaseous state and in <I>n</I>-hexane solution. The excitation energies observed for <I>cis</I> isomers are either smaller or greater than those of the <I>trans</I>, depending on the type of β-substituents. The isomeric difference in the energy of the lowest allowed transition was found to be linearly correlated with Taft's steric substituent constants. The electronic states of the various isomeric pairs were calculated by the LCAO–SCF–CI method of the Pariser-Parr-Pople type. The results were found to be entirely in line with the observed spectral features.
- 公益社団法人 日本化学会の論文
著者
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Yamaguchi Kizashi
Department Of Chemistry Faculty Of Engineering Science Osaka University
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Fueno Takayuki
Department of Synthetic Chemistry Kyoto University
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Naka Yuji
Department of Chemistry, Faculty of Engineering Science, Osaka University
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NAKA YUJI
Department of Chemical Engineering, Kyoto University
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Fueno Takayuki
Department of Chemistry, Faculty of Engineering Science, Osaka University
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