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Microwave Spectrum and Barrier to Internal Rotation in 2,4-Difluorotoluene

✍ Scribed by S. Maiti; A.I. Jaman; R.N. Nandi

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 168 KB
Volume: 177
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1996.0113

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✦ Synopsis

The microwave rotational spectra of 2,4-difluorotoluene (C 6 H 3 CH 3 F 2 ) have been investigated in the ground and first excited torsional state in the frequency ranges 12.4-26.0 and 32.0-37.0 GHz. The true rotational constants for the ground state were determined to be A r Å 3070.287 MHz, B r Å 1273.842 MHz, and C r Å 905.440 MHz. Analysis of the A-E splittings of some ground torsional state transitions resulted in the values of V 3 Å 583.002 cal/mole and u a Å 16.605Њ, assuming V 6 Å 0 and I a Å 3.2 amurA ˚2.

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