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Characterization of silicon-carbon clusters by infrared laser spectroscopy. The v1 band of SiC4

✍ Scribed by A. Van Orden; R.A. Provencal; T.F. Giesen; R.J. Saykally

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
289 KB
Volume
237
Category
Article
ISSN
0009-2614

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✦ Synopsis

The nu 1 fundamental vibration of linear SiC4 has been observed by infrared diode laser spectroscopy of a supersonic cluster beam. Twenty-four rovibrational transitions were measured in the spectral region of 2094.6 to 2097.1 cm-1, the rotational temperature was 10 K. A combined least-squares fit of these transitions with previously reported microwave data yielded the following molecular constants: nu 1 = 2095.45806(37) cm-1, B" = 0.051161131(52) cm-1, and B' = 0.0509157(96) cm-1. These results are compared to vibrational spectroscopy measurements of SiC4 trapped in a solid Ar matrix and to ab initio calculations.

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