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Microwave Spectrum, Quadrupole Coupling Constants, and Dipole Moments of 1-Chloro-2-fluorobenzene

✍ Scribed by Masao Onda; Tsuaki Odaka; Hideya Miyazaki; Masayoshi Mori; Ichiro Yamaguchi; Yuzuru Niide

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 171 KB
Volume: 176
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1996.0056

No coin nor oath required. For personal study only.

✦ Synopsis

The microwave spectrum of 1-chloro-2-fluorobenzene has been reinvestigated in the frequency region 7-14 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 axis system A Å 2917.80197( 42)MHz, B Å 1552.12432(27)MHz, C Å 1013.02869(15)MHz, D J Å 0.0366(33)kHz, D JK Å 0.3010(90)kHz, D K Å 0.263(30)kHz, d 1 Å 0.0164(28)kHz, d 2 Å 00.0071(17)kHz, x aa Å 072.9686(42)MHz, x bb Å 39.1771(45)MHz, x cc Å 33.7915(87)MHz for 1-[ 35 Cl]chloro-2-fluorobenzene. The dipole moments were determined to be m a Å 2.28(85)D and m b Å 1.47(30)D.

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