Abstract
The vibration-rotation emission spectra for the (XH)-H-2 ground state and the near infrared emission spectra of the X(2)Pi(1/2)-X(2)Pi(3/2) system of the TeH and TeD free radicals have been measured at high resolution using a Fourier transform spectrometer. TeH and TeD were generated in a tube furnace with a DC discharge of a flowing mixture of argon, hydrogen (or deuterium), and tellurium vapor. In the infrared region, for the X(2)Pi(3/2) spin component we observed the 1-0, 2-1, and 3-2 vibrational bands for most of the eight isotopologues of TeH and the 1-0 and 2-1 bands for three isotopologues of TeD. For the X(2)Pi(1/2)-X(2)Pi(3/2) transition, we observed the 0-0 and 1-1 bands for TeH and the 0-0, 1-1, and 2-2 bands for TeD. Except for a few lines, the tellurium isotopic shift was not resolved for the X(2)Pi(1/2)-X(2)Pi(3/2) transitions of TcH and TeD. Local perturbations with Delta v = 2 between the two spin components of the X(2)Pi state of TeH were found: X(2)Pi(1/2), v = 0 with X(2)Pi(3/2), v = 2; X(2)Pi(1/2), v = 1 with X(2)Pi(3/2), v = 3. The new data were combined with the previous data from the literature and two kinds of fits (Hund's case (a) and Hund's case (c)) were carried out for each of the 10 observed isotopologues: (TeD)-Te-130, (TeD)-Te-128, (TeD)-Te-126, (TeH)-Te-130, (TeH)-Te-128, (TeH)-Te-126, (TeH)-Te-125, (TeH)-Te-124, (TeH)-Te-123, and (TeH)-Te-122. (c) 2004 Elsevier Inc. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 105-116 |
| Number of pages | 12 |
| Journal | JOURNAL OF MOLECULAR SPECTROSCOPY |
| Volume | 230 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Apr 2005 |
Keywords
- TeH
- TeD
- infrared spectra
- electronic spectra
- local perturbation
- LASER MAGNETIC-RESONANCE
- VIBRATION-ROTATION
- ELECTRONIC STATES
- SPECTROSCOPY
- RADICALS
- SEH