DEVELOPMENT OF FT SPECTROMETER FOR HIGH-RESOLUTION EMISSION SPECTRA OF UNSTABLE SPECIES

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1990

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Ohio State University

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We have improved a technique for obtaining high-resolution emission spectra of unstable species in the visible and u.v. range. For this purpose, the Bruker FT-IR Model \#120 at OSU has been employed with a PMT detector, and the unstable species have been produced with an electric DC discharge in a supersonic nozzle system. The accuracy of the frequencies obtained, and the resolution in the visible region will be discussed. However, the rotational temperature of the species is relatively higher compared to that obtained with laser photolysis. The spectra of CH3S and benzyl radicals will be presented as examples as well as the details of the development of the system.

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Author Institution: Laser Spectroscopy Facility, Department of Chemistry, The Ohio State University

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http://hdl.handle.net/1811/18211

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Abstracts of OSU International Symposium on Molecular Spectroscopy 1990-1999