Journal
JOURNAL OF MOLECULAR SPECTROSCOPY
Volume 283, Issue -, Pages 7-9Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jms.2012.12.002
Keywords
Rovibrational spectrum; Water-carbon dioxide complex; Internal rotation
Funding
- National Natural Science Foundation of China [11174098]
- Natural Science Foundation of Hubei Province [2010CDA075]
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The rovibrational spectrum of H2O-CO2 and D2O-CO2 weakly bound complexes has been measured in the nu(2) bend region of the water monomer by infrared diode laser absorption spectroscopy. Rotational and centrifugal distortion constants for different internal rotation states in the excited vibrational state have been determined. The band-origin of the spectrum is blue-shifted from that of the water monomer by 0.739 cm(-1) for H2O-CO2 and 0.083 cm(-1) for D2O-CO2, respectively. The tunneling splitting is reduced upon vibrational excitation by 0.00698(31) cm(-1) for H2O-CO2 and 0.00044(17) cm(-1) for D2O-CO2, respectively. (c) 2012 Elsevier Inc. All rights reserved.
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