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High-Resolution FTIR Spectrum of the ν5Band of HCOOD

✍ Scribed by K.L. Goh; P.P. Ong; T.L. Tan; H.H. Teo; W.F. Wang

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
127 KB
Volume
191
Category
Article
ISSN
0022-2852

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✦ Synopsis

The high-resolution Fourier transform infrared spectrum of HCOOD has been measured in the 5 region between 1120 and 1220 cm Ϫ1 with a resolution of 0.004 cm Ϫ1 . As expected for an in-plane vibrational fundamental mode, the 5 band is a hybrid band consisting of both a-type and b-type transitions. Using the Watson's A-reduced Hamiltonian in the I r representation, 1943 infrared transitions have been assigned and fitted to give 12 rovibrational constants for the v 5 ϭ 1 state. The 5 band is primarily A type with a band center at 1177.09378 Ϯ 0.00002 cm Ϫ1 . It is found that 5 is slightly perturbed by the nearby 2 7 . About 90 perturbed transitions were identified.

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