The harmonic force fields of methylene chloride and dichlorosilane from combined microwave and infrared data
1981; Elsevier BV; Volume: 85; Issue: 2 Linguagem: Inglês
10.1016/0022-2852(81)90212-5
ISSN1096-083X
AutoresR.Wellington Davis, A.G. Robiette, Michael C. L. Gerry,
Tópico(s)Spectroscopy and Laser Applications
ResumoThe harmonic force fields of methylene chloride and dichlorosilane have been obtained by combining the vibrational wavenumbers and centrifugal distortion constants of several isotopic species. Although enough data were available from earlier work for dichlorosilane, it was first necessary for methylene chloride to determine its distortion constants from microwave spectra. Transitions were measured up to J = 80 and J = 90 for CH2Cl2 and CD2Cl2, respectively, and the analysis gave accurate rotational constants, and quartic and sextic distortion constants. Ground-state effective, substitution, ground-state average and approximate equilibrium structures have been obtained for both molecules.
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