Accession Number : AD0284173

Title :   MICROWAVE SPECTRUM AND BARRIER TO INTERNAL ROTATION OF CIS 1-FLUOROPROPYLENE,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS MALLINCKRODT LAB

Personal Author(s) : BEAUDET,ROBERT A. ; WILSON,E. BRIGHT JR.

Report Date : DEC 1962

Pagination or Media Count : 1

Abstract : THE MICROWAVE SPECTRUM OF CIS CH3CH=CHF WAS INVESTIGATED IN THE REGION 8 TO 36 KMC. THE ROTATIONAL CONSTANTS ARE 17,826.09, 5656.57, AND 4406.91 MC. THE VALUE OF THE INERTIAL DEFECT INDICATES A PLANAR STRUCTURE EXCEPT FOR THE TWO CH3 HYDROGEN ATOMS. THE BARRIER TO INTERNAL ROTATION OF THE CH3 GROUP WAS DETERMINED TO BE 1057 Y 50 CAL. FROM THE SPLITTING OF THE GROUND STATE TRANSITIONS. THE DIPOLE MOMENT IS 1.46 DEBYE. THE SHARP LOWERING OF THE BARRIER ON INTRODUCTION OF THE CIS F SUGGESTS A DIRECT NONBONDED INTERACTION OF THE F AND CH3 HYDROGENS

Descriptors :   *FLUORIDES, *MICROWAVE SPECTROSCOPY, *PROPENES (3 C), CHEMICAL BONDS, DIPOLE MOMENTS, EQUATIONS OF STATE, FLUORINE, METHYL RADICALS, MOLECULAR ROTATION, MOLECULAR STRUCTURE

Distribution Statement : APPROVED FOR PUBLIC RELEASE