Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/96934
Title: Infrared Analysis of the Anharmonic Resonance between ν8 + ν9 and the Dark State ν6 + ν7 of HNO3
Authors: Wang, W.F.
Ong, P.P. 
Tan, T.L. 
Looi, E.C.
Teo, H.H.
Issue Date: Jun-1997
Citation: Wang, W.F.,Ong, P.P.,Tan, T.L.,Looi, E.C.,Teo, H.H. (1997-06). Infrared Analysis of the Anharmonic Resonance between ν8 + ν9 and the Dark State ν6 + ν7 of HNO3. Journal of Molecular Spectroscopy 183 (2) : 407-413. ScholarBank@NUS Repository.
Abstract: The high-resolution FTIR spectrum of the ν8 + ν9 band of HNO3 around 1205 cm-1 has been measured and analyzed. The bright state was found to be strongly perturbed by its neighboring dark state ν6 + ν7 at the coincident levels. Taking account of the ΔK = ±2 anharmonic resonance, a simultaneous fit of ν8 + ν9 and ν6 + ν7 was performed leading to a good reproduction of the ν8 + ν9 band with a rms uncertainty of 0.00046 cm-1. A set of rovibrational constants for ν8 + ν9 were accurately determined, while for ν6 + ν7 the rotational constant B and the band origin were obtained. © 1997 Academic Press.
Source Title: Journal of Molecular Spectroscopy
URI: http://scholarbank.nus.edu.sg/handle/10635/96934
ISSN: 00222852
Appears in Collections:Staff Publications

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