title: High-Resolution FTIR Spectrum of the nu(12) Band of trans-d(2)-Ethylene.
abstract: The nu(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(-1) in the frequency range of 1240-1360 cm(-1) 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 nu(12) with a standard deviation of 0.00043 cm(-1) using a Watson's A-reduced Hamiltonian in the I(r) representation, a set of accurate rovibrational constants for v(12) = 1 state was derived. The nu(12) band is A type with a band center at 1298.03797 +/- 0.00004 cm(-1). Copyright 2000 Academic Press.
authors.affiliation: Department of Physics, Faculty of Science, National University of Singapore, Lower Kent Ridge Road, 119260, Singapore
authors.initials: HH
authors.lastname: Teo
authors.initials: PP
authors.lastname: Ong
authors.initials: TL
authors.lastname: Tan
authors.initials: KL
authors.lastname: Goh