The electronic spectra of .ALPHA.,.OMEGA. -di-1-anthrylpolyenes in solution and in solid state.

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概要

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• The electronic absorption spectra of a number of α,ω-Di-1-anthrylpolyenes have been studied in solution and in crystals. Three intense and two weak band systems have been observed. The plots of λ<SUP>2</SUP>–<I>n</I> and ε–<I>n</I> result in a good straight line in lower members. These results suggest that long anthrylpolyenes are not in <I>all-trans</I> form. Highest energy emission and lowest energy absorption bands show good overlap and identical solvent behavior. It has been concluded that in anthrylpolyenes the lowest excited state is an allowed <SUP>1</SUP>B<SUB>u</SUB> type. The terminal anthrylgroup interaction effect is such that <SUP>1</SUP>A<SUB>g</SUB> is not lowered relative to <SUP>1</SUP>B<SUB>u</SUB> in these polyenes. The absorption bands of anthrylpolyenes in the crystalline state could be explained in terms of factor group split components.

• 公益社団法人 日本化学会の論文

著者

• Mandal Krishnagopal

  Department of Physics, North Bengal University

• Misra T.

  Department of Physics, North Bengal University

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• The electronic spectra of .ALPHA.,.OMEGA. -di-1-anthrylpolyenes in solution and in solid state.

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