HIGH RESOLUTION RAMAN SPECTROSCOPY OF GASES: XIV. ROTATIONAL SPECTRA OF C2H6, C2D6, C2H3D3 AND STRUCTURE OF THE ETHANE MOLECULE

Abstract

An analysis of the rotational Raman spectra of three isotopic species of ethane has given the following values for the rotational constants:[Formula: see text]From these values alone it is found that r0(C—C) = 1.5376 ± 0.003 Å, and when these are combined with, already available values of Ia (the moment of inertia about the symmetric top axis), the CH3 parameters are determined to be r0(C—H) = 1.106 ± 0.006 Å and [Formula: see text].