MILLIMETER-WAVE SPECTRUM OF SILENE: $H_{2}CSiH_{2}$
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Date
1996
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Silene has been produced in the gas phase by vacuum flash pyrolysis of 5-6-bis(trifluoromethyl)-2-silabicyclo[2.2.2]octa-5,7-diene (SBO) at $600^{\circ} C^{a}$. Its rotational spectrum corresponding to a slightly asymenlzie top was observed in a liquid nitrogen cooled cell when argon was used as carrier gas. The assignment of $H_{2}CSiH_{2}$ lines has been made by comparing experimental molecular constants with ab initio predicted values from Breidung and $Thiel^{b}$. The observation of several lines belonging to the $^{2}9/Si$ isotopic species in natural abundance confirmed unambiguously this identification. This work led to the first high resolution spectroscopic results for silene. Study of different isotopomers is in progress and will give an experimental structure of this compound.
Description
$^{a}$G. Maier, G. Mihm, H. P. Reisenauer, Chem. Ber 117 2351 (1984). $^{b}$S. Bailleux. M. Bogey, J. Breidung, H. B\""{u}rger, R. Fajgar, Y. Lin, J. Pola, M. Seuzlober and W. Thiel, J. Am. Chem. Sov., submitted (1996)
Author Institution: Laboratoire de Spectroscopie Hertzierve, Associat\'{e} au C.N.R.S, U.F.R. de Physique, Universit\'{e} des Sciences et Technologies de Lille; Anorganische Chemie, FB 9, Unversit\""{a}i-Gesamthochschale; Instate of Chemical Proces Fundamentals, Academy of Science
Author Institution: Laboratoire de Spectroscopie Hertzierve, Associat\'{e} au C.N.R.S, U.F.R. de Physique, Universit\'{e} des Sciences et Technologies de Lille; Anorganische Chemie, FB 9, Unversit\""{a}i-Gesamthochschale; Instate of Chemical Proces Fundamentals, Academy of Science