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Quasilinearity in tetratomic molecules: an ab initio study of the CHNO family.

Abstract
We present coupled-cluster CCSD(T) all electron results for the equilibrium structure of isofulminic acid, HONC, together with results for the barrier to linearity and the energetics for the four most stable members of the CHNO isomer family, obtained for the ground electronic states by means of large correlation consistent basis sets. Minimum energy paths along the angular coordinates reported for these CHNO isomers are combined with the dominant kinetic energy contributions to predict key rovibrational spectroscopic features which are clearly reminiscent of quasilinear behavior in tetratomic molecules.
AuthorsMirjana Mladenović, Mohamed Elhiyani, Marius Lewerenz
JournalThe Journal of chemical physics (J Chem Phys) Vol. 130 Issue 15 Pg. 154109 (Apr 21 2009) ISSN: 1089-7690 [Electronic] United States
PMID19388738 (Publication Type: Journal Article)

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