Ein Beitrag zur Analyse der Torsionsfeinstruktur Rotationsspektren von Molekiilen mit zwei Methylgruppen / A Contribution to the Analysis of Rotational Spectra of Two-Top Molecules
Open Access
- 1 September 1973
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 28 (9) , 1414-1421
- https://doi.org/10.1515/zna-1973-0906
Abstract
The validity of the Hamiltonian usually used for the analysis of the torsional fine structure in rotational spectra of two-top molecules with the invariance group C3v -⊗C3v + has been checked. The numerical treatment of the Hamiltonian matrix by Van Vleck transformation gives nearly the same result as the direct diagonalisation used in this work. For each torsional state a different set of rotational constants should be used to reproduce the torsional multiplet splittings. The spacing between the multiplets is not given. This fact, illustrated by dimethylsilane (CH3)2SiH2 as an example, demonstrates the limitation in the validity of the Hamiltonian.Keywords
This publication has 0 references indexed in Scilit: