Communication: Spectroscopic observation of the O-bonded T-shaped isomer of the CO-CO2 dimer and two of its intermolecular frequencies | Zendy

S. Sheybani-Deloui | Zendy; A. J. Barclay | Zendy; Kirk H. Michaelian | Zendy; A. R. W. McKellar | Zendy; N. MoazzenAhmadi | Zendy

Open Access

Communication: Spectroscopic observation of the O-bonded T-shaped isomer of the CO-CO2 dimer and two of its intermolecular frequencies

Author(s) -

S. Sheybani-Deloui,

A. J. Barclay,

Kirk H. Michaelian,

A. R. W. McKellar,

N. MoazzenAhmadi

Publication year - 2015

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.4932043

Subject(s) - intermolecular force , dimer , carbon monoxide , infrared spectroscopy , crystallography , chemistry , infrared , planar , spectral line , molecule , physics , optics , catalysis , computer graphics (images) , organic chemistry , astronomy , computer science , biochemistry

Infrared spectra in the carbon monoxide CO stretch region (\u22482150 cm-1) are assigned to the previously unobserved O-bonded form of the CO2-CO dimer ("isomer 2"), which has a planar T-shaped structure like that of the previously observed C-bonded form ("isomer 1"), but with the CO rotated by 180\ub0. The effective center of mass intermolecular distances are 3.58 \uc5 for isomer 2 as compared to 3.91 \uc5 for isomer 1. In addition to the fundamental band, two combination bands are observed for isomer 2, yielding values for two intermolecular vibrational modes: 14.19 cm-1 for the in-plane CO bend and 22.68 cm-1 for the out-of-plane bend.Peer reviewed: YesNRC publication: Ye

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