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Laser-Induced Fluorescence Detection Of The Elusive Sicf Free Radical, Gretchen Rothschopf, Tony C. Smith, Dennis J. Clouthier

Chemistry Faculty Publications

The SiCF free radical has been spectroscopically identified for the first time. The radical was produced in an electric discharge jet using CF₃Si(CH₃)₃ or CF₃SiH₃ vapor in high pressure argon as the precursor. The laser-induced fluorescence spectrum of the à ²Σ⁺ − X̃ ²Π band system in the 610 − 550 nm region was recorded and the ²Π_3/2 spin component of the 0—0 band was studied at high resolution. Rotational analysis gave the B values for the combining states, and by fixing the CF bond lengths at …