Ch-stretching gas phase overtone spectrum of symmetric neopentane- d4

Abstract

The overtone spectrum of neopentane- d 4, C(CH 2D) 4, is examined and the local mode model is used to assign the prominent peaks. Proposed coupling routes for intramolecular vibrational relaxation of CH-stretching overtones are discussed. The dominant vibrational relaxation pathway is identified by comparisons of neopentane- d 4, neopentane and benzene overtone bandwidths.