Laboratory Astrochemistry in the Infrared: High-Resolution Spectroscopy and Molecular Structure of Carbon-Silicon Clusters

A new high-resolution infrared spectrometer using an optical parametric oscillator working at 5 μm as radiaton source has been assembled in the Cologne laboratory and is now operated routinely. As one of the first projects, we have reobserved the ν3 vibrational fundamental (asymmetric C-C stretching mode) of Si2C3 located at 1968.2 cm-1