الخلاصة

In this research, the more important spectral properties of vibration SiCl molecule have been studied and calculated by using the semi-empirical theoretical programs in method (MNDO/PM3). The wave lengths of that vibrations have been calculated and symmetric both of them. Also, the geometric space shape of ion has been calculated by using initial and final matrices that include bonds length, the angle between bonds, dihedral angles and the charge of each atom in ion.