Characterization of silicon-carbon clusters by infrared laser spectroscopy.  The nu 1 band of SiC4.
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.
Van Orden
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Department of Chemistry, University of California, Berkeley 94720, USA.
Provencal
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Giesen
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Saykally
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D001128:Argon; D001256:Astronomy / Q000379:methods; D002244:Carbon / Q000737:chemistry*; D017554:Carbon Compounds, Inorganic; D002623:Chemistry Techniques, Analytical / Q000379:methods; D019443:Cosmic Dust / Q000032:analysis*; D007834:Lasers; D017655:Silicon Compounds / Q000737:chemistry*; D013055:Spectrophotometry, Infrared / Q000379:methods*
D017554:Carbon Compounds, Inorganic; D019443:Cosmic Dust; D017655:Silicon Compounds; D001128:Argon; D002244:Carbon; C022088:silicon carbide