THE PRESSURE-INDUCED INFRARED SPECTRUM OF METHANE.

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)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1968
Accession Number
AD0675325

Entities

People

  • George E. Leroi
  • Robert H. Cole
  • Shmuel Weiss

Organizations

  • Michigan State University

Tags

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Chemistry
  • Cooperation
  • Diffraction
  • Dipole Moments
  • Electromagnetic Spectra
  • Frequency
  • Infrared Spectra
  • Intensity
  • Molecules
  • Sorption
  • Spectra
  • Transitions

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics
  • Organic Chemistry
  • Spectroscopy.