On the characteristic vibrations of the NH2 group

Abstract

The group frequency factorization procedure developed by King and Crawford (1) for the reduction in size of a vibrational secular determinant, by factorizing from it those frequencies that are characteristic of a constituent group, and subsequently extended by us (2), has now been successfully applied to NH2 group vibrations.The method is exemplified by the skeletal vibrations of methylamine, for which satisfactory results are obtained on factorization from the secular determinant of frequencies that are characteristic of both NH2 and CH3 groups.