Accession Number : AD0675325

Title :   THE PRESSURE-INDUCED INFRARED SPECTRUM OF METHANE.

Descriptive Note : Technical rept.,

Corporate Author : MICHIGAN STATE UNIV EAST LANSING DEPT OF CHEMISTRY

Personal Author(s) : Weiss,Shmuel ; Leroi,George E. ; Cole,Robert H.

Report Date : SEP 1968

Pagination or Media Count : 10

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: A(nu) = gamma(nu)(d sq), where A(nu) 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)

Descriptors :   (*METHANE, *INFRARED SPECTROSCOPY), ABSORPTION SPECTRA, PRESSURE, ELECTRON TRANSITIONS, GASES

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE