Vibrational spectrum and molecular structure of methyl pyruvate

Publisher Website
Google Scholar
Abstract
The infrared spectrum of methyl pyruvate in the liquid phase in the vapour phase, in solution, and as a glassy and crystalline solid has been obtained from 4000 to 200 cm-1, together with the Raman spectrum of the liquid. The data are consistent with the assumption of a planar pseudo-trans isomer in the crystalline state, and a mixture of this isomer with a less stable planar pseudo-cis isomer in the other phases investigated. The energy difference between the two isomers in the liquid state was found to be c. 650 cal mol-1. A complete assignment, with the exception of the torsional modes, has been made for both rotational isomers.

This publication has 0 references indexed in Scilit: