Laboratory measurement of the P(2,1) submillimeter transition frequency of H3O+

1 August 1985

journal article
letter
Published by AIP Publishing in The Journal of Chemical Physics

Vol. 83 (3) , 1428-1429
https://doi.org/10.1063/1.449411

Abstract

The P(2,1) transition frequency of the rotation‐inversion spectrum of the molecular ion H₃O⁺ has been measured in the laboratory to be 307 192.41 (5) MHz. Measurement to this frequency should enable radioastronomers to search for H₃O⁺ in interstellar clouds that are warm enough to excite this transition in emission.

Keywords

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