MICROWAVE SPECTROSCOPY OF PLATINUM MONOCYANIDE, PtCN
Loading...
Date
2007
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
The rotational spectrum of platinum monocyanide, PtCN, was observed by employing a source-modulation microwave spectrometer. The PtCN species was generated in a dc glow discharge through the mixture of CH$_3$CN and Ar by a sputtering reaction with a platinum sheet on a cathode. Paramagnetic lines were observed every 6GHz and assigned to three isotopomers, $^{194}$PtCN, $^{195}$PtCN, and $^{196}$PtCN. There was no ${\Lambda}$-type doubling, but hyperfine splitting due to $^{195}$Pt nucleous for $^{195}$PtCN. The hyperfine structure could be fitted to either $^{2}\Pi_{3/2}$ or $^{2}\Delta_{5/2}$ case(c) Hamiltonian within experimental error. %There was no ${\Lambda}$-type doubling but hyperfine splitting due to $^{195}$Pt. %From analysis of the huperfine strucuture, the ground states was found to be ${\Omega}$=3/2 % or 5/2 component. The nuclear - spin interaction constant C$_I$ was derived to be around 0.2 MHz, which was one order of magnitude larger than that of $^{195}$PtCO (C$_I$ = 0.0242 MHz)} \underline{\textbf{105}}, 9659 (2001).}. This result implies that low-lying electronic states would exist comparatively near to the ground electronic state, as in the case of NiCN} \underline{\textbf{118}}, 6370 (2003).}} \underline{\textbf{215(1)}}, 106 (2002).}.
Description
Author Institution: Department of Chemistry, Faculty of Science, Shizuoka University, Oya 836, Shizuoka