Vibration-rotation spectrum of the acetylene-nitrous oxide van der Waals complex in the 3 micron region

Journal Article · Thu Aug 01 04:00:00 EDT 1991 · Journal of Chemical Physics; (USA)

DOI:https://doi.org/10.1063/1.461068· OSTI ID:5543928

Hu, T A; Sun, L H; Muenter, J S ^[1]

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1. Department of Chemistry, University of Rochester, Rochester, New York 14627 (US)

Infrared laser absorption spectroscopy has been carried out on a molecular beam containing the HCCH-N{sub 2}O van der Waals complex. Analysis of the vibration-rotation spectrum gives {nu}=3281.5437(2) cm{sup {minus}1}, {ital A}{double prime}=9387(1) MHz, {ital A}{prime}=9382(1) MHz, {ital B}{double prime}=2829.6(3) MHz, {ital B}{prime}=2827.2(3) MHz, {ital C}{double prime}=2166.6(2) MHz, and {ital C}{prime}=2163.7(2). These rotational constants describe a planar complex with parallel monomer axes making right angles with the vector connecting the monomer centers of mass. The monomer center of mass separation is 3.307 A. This geometry is very similar to that of HCCH-CO{sub 2}. This similarity is also present in the comparison of model potential functions calculated for HCCH-N{sub 2}O and HCCH-CO{sub 2}.

• DOE Contract Number: FG02-87ER60514
• OSTI ID: 5543928
• Journal Information: Journal of Chemical Physics; (USA), Journal Name: Journal of Chemical Physics; (USA) Vol. 95:3; ISSN JCPSA; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
ACETYLENE
ALKYNES
BEAMS
CHALCOGENIDES
COMPLEXES
ENERGY LEVELS
EXCITED STATES
HYDROCARBONS
INFRARED SPECTRA
MOLECULAR BEAMS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
ROTATIONAL STATES
SPECTRA
VAN DER WAALS FORCES
VIBRATIONAL STATES