High-resolution overtone spectra of molecular complexes

A high-resolution spectrum of the acetylene-water complex has been recorded in the overtone range. Two bands of C 2 H 2 -D 2 O were analysed, corresponding to the overtone excitations of either the acetylene or the water units. The vibrational shifts and the upper states rotational constants were re...

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Bibliographic Details
Published in:Molecular physics 2013-02, Vol.111 (3), p.355-364
Main Authors: Didriche, K., Földes, T.
Format: Article
Language:English
Subjects:
Acetylene
Bands
Constants
Excitation
high resolution
Joining
molecular complex
Molecular physics
overtone
Rotational
Spectra
water
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Summary:A high-resolution spectrum of the acetylene-water complex has been recorded in the overtone range. Two bands of C 2 H 2 -D 2 O were analysed, corresponding to the overtone excitations of either the acetylene or the water units. The vibrational shifts and the upper states rotational constants were retrieved, demonstrating that the geometry of the complex is only slightly modified by the excitation. A larger linewidth was observed for the 2CH band than for the 2OD + DOD band, probably due to the direct coupling of the 2CH excitation with the dissociation coordinate.
ISSN:0026-8976
1362-3028
DOI:10.1080/00268976.2012.752880