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High-Resolution FTIR Spectrum of the ν12 Band of trans-d2-Ethylene

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

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
77 KB
Volume
204
Category
Article
ISSN
0022-2852

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✦ Synopsis

The 12 band of trans-d 2 -ethylene (trans-C 2 H 2 D 2 ) has been recorded with an unapodized resolution of 0.0024 cm Ϫ1 in the frequency range of 1240 -1360 cm Ϫ1 by Fourier transform infrared (FTIR) spectroscopy. This band was found to be relatively free from any local frequency perturbations. By fitting a total of 1185 infrared transitions of 12 with a standard deviation of 0.00043 cm Ϫ1 using a Watson's A-reduced Hamiltonian in the I r representation, a set of accurate rovibrational constants for v 12 ϭ 1 state was derived. The 12 band is A type with a band center at 1298.03797 Ϯ 0.00004 cm Ϫ1 .

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