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The C–O Stretching Band of the CO–N2O van der Waals Complex

✍ Scribed by Yunjie Xu; A.R.W. McKellar

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
248 KB
Volume
180
Category
Article
ISSN
0022-2852

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✦ Synopsis

The weakly bound van der Waals complex CO-N 2 O has been studied for the first time. Absorption spectra in the CO stretching region near 2150 cm 01 were recorded using a tunable diode laser spectrometer to probe the continuous supersonic jet from a slit-shaped nozzle. A total of 186 lines were measured and assigned as parallel (DK a Å 0) transitions of a planar near-prolate asymmetric top molecule. Analysis of these data with a conventional Hamiltonian yielded accurate values for the band origin, rotational, and centrifugal distortion parameters. The parameters obtained were very similar to those of the isoelectronic complex CO-CO 2 , indicating that CO-N 2 O has a similar T-shaped equilibrium structure. The effective intermolecular separation was determined to be 3.878 A ˚.

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