Millimeter- and submillimeter-wave spectra of platinum monosulfide (PtS) in the X3Σ0- state

• Published in: Journal of molecular spectroscopy Vol. 278; pp. 7 - 10
• Main Authors: Okabayashi, Toshiaki, Yamamoto, Takuya, Kurahara, Taku, Mizuguchi, Den-ichiro, Mizuno, Shohei, Tanimoto, Mitsutoshi
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.08.2012
• Subjects: Microwave spectrum; Platinum monosulfide; Sputtering reaction; Sputtering reaction; Platinum monosulfide; Microwave spectrum
• ISSN: 0022-2852; 1096-083X
• DOI: 10.1016/j.jms.2012.07.002

[Display omitted] ► The millimeter- and submillimeter-wave spectra of PtS were observed. ► Rotational transitions were recorded for four isotopomers in the X3Σ0- ground state. ► The spectroscopic constants were determined using a Hund’s case (c) Hamiltonian. ► The lower limit of 3Σ0--3Σ1- is estimated from a Hund’s case (a) analysis. The millimeter- and submillimeter-wave spectra of PtS in the X3Σ0- state were observed by employing a source-modulated microwave spectrometer. The PtS radical was generated in a free space cell by using a dc glow plasma of H2S and Ar. Platinum atoms were supplied from a small piece of platinum sheet lining the inner surface of a stainless steel cathode by the sputtering reaction. Rotational transitions were recorded for four dominant isotopomers, 194PtS, 195PtS, 196PtS, and 198PtS in the X3Σ0- ground state, and the spectroscopic constants for each isotopomer were determined using a Hund’s case (c) Hamiltonian. The lower limit of the 3Σ0−-3Σ1− energy separation is estimated from a Hund’s case (a) analysis.