Group vibrations and the vibrational analysis of molecules containing the CD3 group

Abstract

The procedure introduced by King and Crawford for the simplification of the molecular vibrational problem by factorization from the secular determinant of characteristic group frequencies, and applied by them to the CD3 group, has been reexamined and programmed in English-Electric KDF-9 Algol. A few small corrections have been made to their results, and equations are given for the calculation of CD3 group frequencies in molecules bearing such groups.The group factorization procedure has also been applied to the calculation of the skeletal frequencies of ααα-d3-dimethyl sulfide and d6-dimethyl selenide.