Accession Number:

AD0257303

Title:

SOLID-STATE VIBRATIONAL SPECTRA OF ETHYLENE AND ETHYLENE-D4

Descriptive Note:

Corporate Author:

MELLON INST PITTSBURGH PA

Personal Author(s):

Report Date:

1961-05-10

Pagination or Media Count:

1.0

Abstract:

High resolution infrared spectra have been obtained for polycrystalline C2H4 at 4 K and 53 K and for C2D4 at 53 K. The observed multiplet structure of the fundamental vibrations is in good agreement with the group theoretical predictions. In C2H4 there is evidence for a gradual phase transition between 4 K and 53 K, involving reorientation of the planes of the H atoms of C2H4 molecules in the crystal. The Raman-active fundamentals have been observed, weakly, in thick deposits of C2H4 at 4 K. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE