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Laser Absorption Spectroscopy of TiCl+: Analysis of the [17.9]3Δ–X3Φ (0,0) Band

✍ Scribed by Leonid A. Kaledin; Michael C. Heaven

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
170 KB
Volume
184
Category
Article
ISSN
0022-2852

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✦ Synopsis

The laser absorption spectrum of the TiCl / molecular ion has been observed for the first time in a hollow cathode discharge. The discharge was driven at 25 kHz at powers in the 80-100 W range. Flowing samples of TiCl 4 in Ar were discharged. A total of 235 lines of the 48 Ti 35 Cl / [17.9] 3 D-X 3 F (0,0) band and 122 lines of the 48 Ti 37 Cl / [17.9] 3 D-X 3 F (0,0) band were recorded at resolution 0.02 cm 01 . Rotational constants for the [17.9] 3 D (£ Å 0) and X 3 F (£ Å 0) states of the 48 Ti 35 Cl / and 48 Ti 37 Cl / isotopomers are reported. This band system was observed previously in the emission spectrum of TiCl / (W. J. Balfour and K. S. Chandrasekhar, 1990, J. Mol. Spectrosc. 139, 245-252) but the electronic assignments for the lower and upper states of the transition are revised here. The present experimental results are in excellent agreement with predictions based on ligand field theory models (L. A.

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