Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Absorption Spectra of Crystals of Cytosine and Its Derivatives
Masashi TanakaJiro Tanaka
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1971 Volume 44 Issue 3 Pages 672-674

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Abstract

The electronic spectra of cytosine, one of DNA bases, have been studied. The absorption spectra of single crystals of cytosine and its derivatives are presented, and the direction of the transition moment of the first π→π* band is determined to be inclined at about +100° from the N1–C4 line toward the C5 atom. The second π→π* band is shown to have polarization direction at +30° inclined to the reference axis.

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