Submillimeter-Wave Spectroscopy of the CrP Radical 4Σ-
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.
- Publication:
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73rd International Symposium on Molecular Spectroscopy
- Pub Date:
- June 2018
- DOI:
- 10.15278/isms.2018.RL02
- Bibcode:
- 2018isms.confERL02B
- Keywords:
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- Astronomy