Spectroscopic parameters of phosphine, PH3, in its ground vibrational state

Abstract

The ground state rotational spectrum of PH3 has been reanalyzed taking into account recently published very accurate data from sub-Doppler and conventional absorption spectroscopy measurements as well as previous data from the radio-frequency to the far-infrared regions. These data include Delta(J) = Delta(K) = 0 transitions between A1 and A2 levels, Delta(J) = 0, Delta(K) = 3 transitions as well as regular Delta(J) = 1, Delta(K) = 0 rotational transitions. Hyperfine splitting caused by the 31P and 1H nuclei has been considered, and the treatment of the A1/A2 splitting has been discussed briefly. Improved spectroscopic parameters have been obtained. Interestingly, the most pronounced effects occured for the hyperfine parameters.

6 pages, no figure, 1 table, Journal of Quantitative Spectroscopy and Radiative Transfer, accepted

References in corpus (3)

• Atomic and Molecular Opacities for Brown Dwarf and Giant Planet Atmospheres
• Tentative detection of phosphine in IRC+10216
• A Computed Room Temperature Line List for Phosphine

Cited by in corpus (12)

• The Cologne Database for Molecular Spectroscopy, CDMS, in the Virtual Atomic and Molecular Data Centre, VAMDC
• 2021 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules
• 2018 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules
• ExoMol line lists VII: The rotation-vibration spectrum of phosphine up to 1500 K
• Exploring molecular complexity with ALMA (EMoCA): Alkanethiols and alkanols in Sagittarius B2(N2)
• Confirmation of circumstellar phosphine
• Re-analysis of the 267-GHz ALMA observations of Venus: No statistically significant detection of phosphine
• First extragalactic detection of a phosphorus-bearing molecule with ALCHEMI: phosphorus nitride (PN)
• Tunnelling splitting in the phosphine molecule
• Exactly solvable double-well potential in Schrödinger equation for inversion mode of phosphine molecule
• Submillimeter-wave spectroscopy of the CH${}_3$O radical
• Anomalous phosphine sensitivity coefficients as probes for a possible variation of the proton-to-electron mass ratio