Infrared Spectroscopy of - and Carbon-Silicon Clusters

Details Infrared Spectroscopy of - and Carbon-Silicon Clusters Infrared Spectroscopy of - and Carbon-Silicon Clusters

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mss..confemg06k&link_type=abstract

"International Symposium On Molecular Spectroscopy, 66th Meeting, Held 20-24 June, 2011 at Ohio State University. http://molspec

Physics

Infrared/Raman

Scientific paper

Many of the molecules found in space are carbonaceous, that is, they have a carbon backbone in their structure. In addition, many of these molecules carry heteroatoms such as nitrogen and oxygen and also second row elements such as silicon. To date, four silicon-carbon molecules SiC_n (n=1-4) have been detected in space and several more by high-resolution spectroscopic techniques in the laboratory. Owing to their symmetry, many clusters of the form SiC_nSi (and linear C_n chains) are non-polar and hence have no pure rotational spectrum. In an effort to obtain the gas-phase spectra of these clusters in the infrared, we have started a dedicated laboratory program employing diode laser techniques and more recently an optical parametric oscillator-based spectrometer operating at 5 microns, where many carbon- and carbon-silicon chains are expected to exhibit strong infrared-active vibrational modes. Results from new observations of the previously studied Si_2C_3 and C_6 clusters will be reported.
A. Van Orden, T. F. Giesen, R. A. Provencal, H. J. Hwang, and R. J. Saykally, J. Chem. Phys. 101, 10237 (1994).
H. J. Hwang, A. van Orden, K. Tanaka, E. W. Kuo, J. R. Heath, and R. J. Saykally, Mol. Phys. 79, 769 (1993).

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