Accession Number : AD0284172

Title :   THE MICROWAVE SPECTRUM, BARRIER TO INTERNAL ROTATION, AND QUADRUPOLE COUPLING CONSTANTS OF TRANS 1-CHLOROPROPYLENE,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS MALLINCKRODT LAB

Personal Author(s) : BEAUDET,ROBERT A.

Report Date : DEC 1962

Pagination or Media Count : 1

Abstract : The microwave spectra of two isotopic species of trans chloropropylene, CH3CH=CHCl-35 and CH3CH=CHCl-37, have been measured and assigned. The quadrupole coupling constants of the Cl-35 nucleus were determined from the hyperfine structure. A few transitions were further split by the linear effect of the barrier to internal rotation of the methyl group. From these separations the barrier height was measured to be 2170 ! 100 cal/mole. (Author)

Descriptors :   *CHLORIDES, *MICROWAVE SPECTROSCOPY, *PROPENES (3 C), CHLORINE, ELECTRON TRANSITIONS, HYPERFINE STRUCTURE, ISOTOPES, METHYL RADICALS, MOLECULAR ROTATION, MOLECULAR STRUCTURE, QUADRUPOLE MOMENT

Distribution Statement : APPROVED FOR PUBLIC RELEASE