Millimeter/submillimeter-wave spectroscopy of the CrP radical 4Σ−
Burton, Mark
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https://hdl.handle.net/2142/100790
Description
Title
Millimeter/submillimeter-wave spectroscopy of the CrP radical 4Σ−
Author(s)
Burton, Mark
Contributor(s)
Ziurys, Lucy M.
Halfen, DeWayne T.
Issue Date
2018-06-21
Keyword(s)
Astronomy
Abstract
The millimeter/sub-mm spectrum of the CrP radical in its X4Σ − ground electronic state has been recorded using direct absorption techniques in the frequency range of 340-540 GHz. This study is the first pure rotational measurement of a metal-phosphide species. CrP was synthesized in an AC discharge by the reaction of gas-phase chromium, generated from Cr(CO)6, with phosphorus vapor, in argon carrier gas. Twelve rotational transitions were measured, each consisting of four fine structure components. The data were analyzed using a Hund’s case b Hamiltonian; rotational, spin-spin, and spin-rotation constants were determined, improving on previous optical work. Comparison with our previous study of CrN indicates differences between metal-nitrogen and metal-phosphorus bonds.
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