M. Onda, Tsuaki Odaka, H. Miyazaki
Jun 1, 1994
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Journal
Journal of Molecular Spectroscopy
Abstract
The microwave spectrum of 1-chloro-3-fluorobenzene was reinvestigated in the frequency region 7-13 GHz by a molecular beam Fourier transform microwave spectrometer. A least-squares analysis of the observed a- and b-type transition frequencies gave rotational and quartic centrifugal distortion constants and the components of the nuclear quadrupole coupling tensor in the principal inertial axes system, A = 3425.57437 (24) MHz, B = 1176.59907 (25) MHz, C = 875.68123 (14) MHz, DJ = 0.0314 (30) kHz, DJK = 0.0334 (75) kHz, DK = 0.726 (30) kHz, d1 = −0.00972 (98) kHz, d2 = −0.00225(52) kHz, χaa = −61.3242(33) MHz, χbb = 28.1056(27) MHz, χcc = 33.2186(60) MHz, χab = 32.989(25) MHz, for 1-[35Cl]chloro-3-fluorobenzene. The dipole moments were found to be μa ≤ 0.2 D and μb = 1.464 (2) D.