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Anharmonic vibrational levels of the two cyclic isomers of SiC3

Abstract : Using coupled-cluster approach full six-dimensional analytic potential energy surfaces for two cyclic SiC3 isomers [C-C transannular bond (I) and Si-C transannular bond (II)] have been generated and used to calculate anharmonic vibrational wave functions. Several strong low-lying anharmonic resonances have been found. In both isomers already some of the fundamental transitions cannot be described within the harmonic approximation. Adiabatic electron affinities and ionization energies have been calculated as well. The Franck-Condon factors for the photodetachment processes c-SiC3-(I)-> c-SiC3(I) and c-SiC3-(II)-> c-SiC3(II) are reported. (c) 2006 American Institute of Physics.
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https://hal-upec-upem.archives-ouvertes.fr/hal-00693743
Contributor : Roberto Linguerri <>
Submitted on : Wednesday, May 2, 2012 - 11:10:40 PM
Last modification on : Wednesday, February 26, 2020 - 7:06:08 PM

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Roberto Linguerri, P. Rosmus, S. Carter. Anharmonic vibrational levels of the two cyclic isomers of SiC3. Journal of Chemical Physics, American Institute of Physics, 2006, 125 (3), pp.34305. ⟨10.1063/1.2209693⟩. ⟨hal-00693743⟩

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