THE PRESSURE-INDUCED INFRARED SPECTRUM OF METHANE.

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Abstract:

The pressure-induced infrared absorption spectrum of gaseous methane was observed using a 10m cell and 4-10 atm. pressure in the region 200-550 cm. The intensity can be expressed according to the relation Anu gammanud sq, where Anu is the absorbance at frequency nu, and d is the gas density. The spectrum is interpreted in terms of rotational transitions in a pair of CH4 molecules possessing a transient dipole moment induced by the octopole moment of the molecule. Author

Author(s):
Weiss, Shmuel ; Leroi, George E. ; Cole, Robert H.
Author Organization(s):
MICHIGAN STATE UNIV EAST LANSING DEPT OF CHEMISTRY
Descriptive Note:
Technical rept.,
Supplementary Note:
Prepared in cooperation with Princeton Univ., N. J. Dept. of Chemistry, and Brown Univ., Providence, R. I. Dept. of Chemistry.
Pagination:
0010

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-3(8)
Contract/Grant Number(s):
N00014-68-A-0004
Project Number(s):
NR-051-466
 Subject Terms
Joint Capability Areas:
JCA_6.3.3_Spectrum Management; JCA_6.3_Net Management; JCA_6_Net Centric
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*METHANE, *INFRARED SPECTROSCOPY), ABSORPTION SPECTRA, PRESSURE, ELECTRON TRANSITIONS, GASES
Field(s)/Group(s):
Atomic and Molecular Physics and Spectroscopy
Keyword(s):
ROTATIONAL SPECTRA
Report Date:
1968 Sep 01