Laboratory measurement of the 1(10)-1(11) submillimeter line of H2D(+)

Details Laboratory measurement of the 1(10)-1(11) submillimeter line of H2D(+) Laboratory measurement of the 1(10)-1(11) submillimeter line of H2D(+)

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...137l..15b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 137, no. 2, Aug. 1984, p. L15, L16. Research supported by the Etablissement Pu

Astronomy and Astrophysics

Astrophysics

43

Hydrogen Ions, Infrared Spectra, Molecular Ions, Molecular Spectra, Tritium, H Lines, Microwave Spectra, Submillimeter Waves

Scientific paper

The 1(10) - 1(11) rotational transition line of H2D(+) is observed experimentally in a magnetic-field-lengthened negative glow discharge. The experimental parameters include: discharge current 4 mA, discharge voltage 2000 V, magnetic field 400 G, total pressure 8 mtorr, H2 pressure 150 microtorr, and D2 pressure 50 microtorr; the frequency range 330-406 GHz is scanned with a frequency-modulated backward-wave oscillator at 500 kHz/s. A single line at frequency 372.42134 (20) GHz is observed, in good agreement with ab initio calculations and the predictions of Amano (1984). The measurement reported is applicable to radio observations of interstellar gas-phase ion-molecule reactions.

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