Evaluation of Molecular Quadrupole Moments from Microwave Spectral Line Breadths. I. Theoretical
- 1 September 1956
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 25 (3), 510-515
- https://doi.org/10.1063/1.1742955
Abstract
The breadths of microwave spectral lines in gas mixtures may arise from several different interactions. It is shown that when the radiating molecule is the linear molecule OCS, polarizability interactions predominate, but when the radiating molecule is NH3 undergoing inversion, quadrupole moment interactions predominate. Consequently, NH3 is a particularly suitable molecule to use as a ``probe'' to measure quadrupole moments of other molecules. An improved theoretical analysis leads to a revision of previously published molecular quadrupole moments.Keywords
This publication has 6 references indexed in Scilit:
- Pressure Broadening of Linear Molecules. II. TheoryThe Journal of Chemical Physics, 1955
- Microwave Collision Diameters and Associated Quadrupole MomentsPhysical Review B, 1951
- Pressure Broadening of the Ammonia Inversion Line by Foreign Gases: Quadrupole-Induced Dipole InteractionsPhysical Review B, 1950
- Microwave Collision Diameters II. Theory and Correlation with Molecular Quadrupole MomentsPhysical Review B, 1950
- Pressure Broadening in the Microwave and Infra-Red RegionsPhysical Review B, 1949
- On the Shape of Collision-Broadened LinesReviews of Modern Physics, 1945