Microwave spectroscopy of platinum monofluoride and platinum monochloride in the X 2 Π 3/2 states

Platinum monofluoride (PtF) and platinum monochloride (PtCl) were detected in the gas phase using a source-modulated microwave spectrometer. The PtF and PtCl radicals were generated in a free space cell using the sputtering reaction from a platinum sheet placed on the inner surface of a stainless st...

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Bibliographic Details
Published in:The Journal of chemical physics 2012-05, Vol.136 (17), p.174311-174311-9
Main Authors: Okabayashi, Toshiaki, Kurahara, Taku, Okabayashi, Emi Y., Tanimoto, Mitsutoshi
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Summary:Platinum monofluoride (PtF) and platinum monochloride (PtCl) were detected in the gas phase using a source-modulated microwave spectrometer. The PtF and PtCl radicals were generated in a free space cell using the sputtering reaction from a platinum sheet placed on the inner surface of a stainless steel cathode through a dc glow discharge plasma of CF 4 and Cl 2 , respectively, diluted with Ar. Rotational transitions were measured in the region between 150 and 313 GHz. Rotational, centrifugal distortion, and several fine- and hyperfine-structure constants were determined by a least-squares analysis. The observed fine-structure spectral patterns indicate that both PtF and PtCl radicals have the 2 Π 3/2 electronic ground states, while the related cyanide PtCN and hydride PtH radicals have the 2 Δ 5/2 electronic ground states.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.4709487