MONATSHEFTE FUR CHEMIE, cilt.127, sa.5, ss.505-512, 1996 (SCI-Expanded)
Conformational analyses and quantum chemical calculations were carried out for 1,4,5-substituted derivatives of 1H-pyrimidin-2-thione with the common skeleton I by means of the methods MMP2 and SCF MO LCAO in the CNDO/2 and MNDO approximations. The analysis of the electron density distribution as a function of the nature of the substitutents was performed on the basis of the data obtained.