Exciton Band Structures in Homopolynucleotides

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概要

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• Singlet exciton band structures in single stranded homogeneous polynucleotides have been determined within the framework of Frenkel exciton model without or with interband configuration mixing. Intermonomer interactions are taken into account to a distance of the order of 20Å using the best available π-eletron molecular orbitals obtained by us in the previous study. Configuration mixing between lowest nine exciton bands is taken into account explicitly. Mixing proess seems to be very important to determine reliable band widths, especially in poly A. Obtained band widths are 0.64eV in poly A, 0.34eV in poly U, 0.55eV in poly G and 0.26eV in poly C respectively without configuration mixing and 0.25eV in poly A, 0.34eV in poly U, 0.49eV in poly G and 0.23eV in poly C respectively with configuration mixing. In poly A and poly U the absorption maximum corresponding to the lowest excitation slightly shifts to the short wave length side from that of monomer. On the contrary, appreciable red shifts can be found in poly G and poly C.

• 社団法人日本物理学会の論文
• 1969-01-05

著者

• Yomosa Sigeo

  Department Of Physics Faculty Of Science Nagoya University

• Miyata Takashi

  Department Of Physics Waseda University

• Miyata Takashi

  Department Of Chemistry And Materials Engineering Kansai University

• Miyata Takashi

  Department Of Biophysics Faculty Of Science Kyoto University

• MIYATA Takashi

  Department of Applied Physics, Tokai University

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