FOURIER TRANSFORM MICROWAVE SPECTROSCOPY OF THE CONFORMERS OF PERFLUOROBUTANE
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Date
1998
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Nitrogen matrix IR spectroscopy and ab initio calculations of three distinct conformations of perfluoro-n-butane, $n-C_{1}F_{10}$, have recently been $reported^{a}$. We have measured the Fourier Transform microwave spectrum of the gauche conformer of perfluoro-n-butane and determined the C-C-C-C dihedral angle to be $\sim 51^{\circ}$. This is in good agreement with the ab initio calculations of Albinsson and Michl that predicted dihedral angles of $54^{\circ}, 95^{\circ}$, and $165^{\circ}$, for the gauche, ortho, and anti conformations, respectively. The search for the other conformations continues. In addition, the spectrum of the symmetric top isomer, perfluoroisobutane, has been observed.
Description
$^{a}$ B. Albinsson and J. Michl. J. Phys. Chem. 100, 3418 (1996)
Author Institution: Department of Chemistry, Wesleyan University; Department of Chemistry and Biochemistry, University of Colorado
Author Institution: Department of Chemistry, Wesleyan University; Department of Chemistry and Biochemistry, University of Colorado