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Proceedings Paper

Millimeter-wave spectroscopy of silene, CH2SiH2
Author(s): Stephane Bailleux; Marcel Bogey; Hans Buerger; Radek Fajgar; Yuyan Liu; Josef Pola; Michael Senzlober
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Paper Abstract

Free CH2 equals SiH2 (1) has been observed in the gas phase by millimeter wave spectroscopy. A total of 142 rotational lines of the 28Si species were measured, the search being guided by recent ab initio calculations. The identification of the molecule has been confirmed by the observation of many isotopomers: H2CSiD2, H2CSiHD, H2C29SiD2 and D2CSiH2. The ab initio and experimental rotational constants of 1 with a planar C2v structure agree within about 0.5%. Silene was produced by vacuum pyrolysis of Ar-seeded 5,6-bis (trifluoromethyl)-2-silabicyclo [2.2.2] octa-5,7-diene; it decomposes with a 1/e lifetime of the exponential decay at ambient temperature of 30 plus or minus 2 ms.

Paper Details

Date Published: 3 March 1997
PDF: 5 pages
Proc. SPIE 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy, (3 March 1997); doi: 10.1117/12.267755
Show Author Affiliations
Stephane Bailleux, Univ. des Sciences et Technologies de Lille (France)
Marcel Bogey, Univ. des Sciences et Technologies de Lille (France)
Hans Buerger, Univ.-Gesamthochschule (Germany)
Radek Fajgar, Institute of Chemical Process Fundamentals (Czech Republic)
Yuyan Liu, Univ. des Sciences et Technologies de Lille (France)
Josef Pola, Institute of Chemical Process Fundamentals (Czech Republic)
Michael Senzlober, Univ.-Gesamthochschule (Germany)


Published in SPIE Proceedings Vol. 3090:
12th Symposium and School on High-Resolution Molecular Spectroscopy
Leonid N. Sinitsa; Yurii N. Ponomarev; Valery I. Perevalov, Editor(s)

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