Microwave spectrum and molecular structure of gauche-1,2-difluoroethane

Article abstract of DOI:10.1063/1.450042

The microwave spectra of four isotopic species ofgauche-1,2-difluoroethane have been observed.Having combined the rotational constants obtained with those of the normal species, all the structural parameters have been determined as follows; r(C-C) =1.493(8) Angstroem, r(C-F) =1.390(3) Angstroem, r(C-H_g) =1.099(2) Angstroem, r(C-H_t) =1.093(5) Angstroem, <*>CCF=110.6(5) deg, <*>CCH_g =108.4(6)deg, <*>CCH_t =111.3(6)deg, <*>HCH =109.1(5)deg, <*>FCH_g =109.6(3)deg, <*>FCH_t =107.8(6)deg, and FCCF (dihedral angle)=71.0(3)deg.The spectra of normal species in the excited torsional states have also been observed up to ν_t = 4, and the results of the analysis indicate that thegauche gauche barrier should be higher than the value, 468.6 cm^-1, reported by the analysis of vibrational spectra.

Full text of DOI:10.1063/1.450042

Microwave spectrum and molecular structure of g a u c h e1,2difluoroethane
Harutoshi Takeo, Chi Matsumura, and Yonezo Morino
Citation: The Journal of Chemical Physics 84, 4205 (1986); doi: 10.1063/1.450042
View online: http://dx.doi.org/10.1063/1.450042
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/84/8?ver=pdfcov
Published by the AIP Publishing
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
128.143.23.241 On: Mon, 22 Dec 2014 06:30:27

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
128.143.23.241 On: Mon, 22 Dec 2014 06:30:27

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
128.143.23.241 On: Mon, 22 Dec 2014 06:30:27

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
128.143.23.241 On: Mon, 22 Dec 2014 06:30:27

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
128.143.23.241 On: Mon, 22 Dec 2014 06:30:27