IR SPECTRA OF HIGH TEMPERATURE MOLECULES USING THE BURST OF GAS METHOD

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1985

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Ohio State University

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The infrared spectra of several molecules which are stable only at high temperatures, have been observed using a family of related techniques which are collectively known as the burst of gas method. Two methods were used to generate these gas bursts. In the first, a burst of reactant gas is passed over a hot sample surface. The molecule of interest is formed by chemical reactions between the gas and the surface. The spectra of $Al_{2}Cl_{6}, W_{n}O_{3n} (n = 1 - 3)$, and $TiF_{4}$ will be used to illustrate this method. In the second procedure, a precursor solid is rapidly heated to a very high temperature to generate the gas burst. The spectra of KOCN monomer and dimer, and the $C_{2}F_{2}$ will be used to illustrate this method. In all cases, the spectra of the gas bursts have been obtained with a Nicolet MX-1 FT-IR.

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Author Institution: Department of Chemistry, James Madison University

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