Observation of the infrared spectrum of H3 +
Abstract
The infrared nu 2 band of H3(+) has been observed. A direct infrared absorption method combining a liquid-nitrogen-cooled multiple-reflection discharge cell and a difference-frequency laser system has been used for the detection. Fifteen absorption lines have been measured in the region 2950-2450 kaysers and assigned. This is the first spectroscopic detection of this fundamental molecular ion in any spectral range.
- Publication:
-
Physical Review Letters
- Pub Date:
- August 1980
- DOI:
- 10.1103/PhysRevLett.45.531
- Bibcode:
- 1980PhRvL..45..531O
- Keywords:
-
- Absorption Spectra;
- Hydrogen Ions;
- Infrared Spectra;
- Molecular Ions;
- Molecular Spectra;
- Triatomic Molecules;
- Electron Transitions;
- Gas Discharges;
- Laser Applications;
- Line Spectra;
- Liquid Nitrogen;
- Atomic and Molecular Physics;
- 33.20.Ea;
- 35.20.Pa;
- 36.90.+f;
- Infrared spectra;
- Other exotic atoms and molecules;
- macromolecules;
- clusters