BOND AND MOLECULAR POLARIZABILITIES IN THE STRUCTURAL STUDIES OF CYTOSINE AND ITS SUBSTITUENTS

摘要

Bond and molecular polarizaoilities of cytosine and a few of its substituents are determined by Force field tecnnique and S-function potential model. Interestingly the longitudinal bond polarizaoility coefficients of C_4-C_5, C_5-CH_3 bring out thernaromatic nature of tne c x-ray, N.M.R. opser-vations, quantum chemical calculations and UV photo electron studies are discussed in relation to this. The agreement is satisfactory.