SPECTROSCOPY OF THE PRODUCTS OF THE REACTIONS BETWEEN ABLATED TRANSITION METALS AND SMALL HYDROCARBONS
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Date
1998
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Ohio State University
Abstract
The products of the reactions between ablated transition metals and small hydrocarbons have been investigated using laser induced fluorescence. In the low resolution $(FWHM=0.05cm^{-1})$ spectrum of the products of ablated Pt with $C_{3}H_{3}$ or $CH_{4}$ a series of weak features close to the $^{1}\Pi \leftarrow ^{1}\Sigma^{+}$ band of $PtC^{a}$ have been identified. These features are broad and exhibit no resolveable rotational structure. All the bands disappear when the $C_{3}H_{3}$ or $CH_{4}$ is replaced with $NH_{3}, H_{2}$ or $CS_{2}$. The dispersed fluorescence spectra of these bands displays a low frequency progression $(\omega_{e} \approx 250cm^{-1})$ close to that observed in $Pt_{2}$, however, they are not $Pt_{2}^{bc}$. On this basis, these features are tentatively assigned to $Pt_{2}CH_{x}$. Progress on the analysis of these bands, higher resolution work and new work on F*** and other transition metals with small hydrocarbons will be presented.
Description
$^{a}$ T.C. Steimle, K.Y. Jung and B.-Z. Li, J. Chem. Phys., 102, 5937, (1995) $^{b}$ M. Morse, Private communication $^{c}$ S. Taylor, G.W. Lemire, Y.M. Hamrick, Z. Fu and M.D. Morse, J. Chem. Phys., 89, 5517, (1988)
Author Institution: Department of Chemistry and Biochemistry, Arizona State University
Author Institution: Department of Chemistry and Biochemistry, Arizona State University