title: Microwave spectroscopy of platinum monofluoride and platinum monochloride in the X 2Π(3/2) states.
abstract: 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.
authors.affiliation: Graduate School of Science and Technology, Shizuoka University, 836 Oya, Shizuoka 422-8529, Japan.
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Okabayashi
authors.forename: Taku
authors.initials: T
authors.lastname: Kurahara
authors.forename: Emi Y
authors.initials: EY
authors.lastname: Okabayashi
authors.forename: Mitsutoshi
authors.initials: M
authors.lastname: Tanimoto