ROTATIONAL ANALYSIS OF THE $\gamma'$ SYSTEM OF TiO
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Date
1978
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Volume Title
Publisher
Ohio State University
Abstract
The $\gamma ^{\prime}(B^{3}\Pi -X^{3}\Delta)$ electronic system of gaseous titanium monoxide, TiO, has been photographed in emission at high dispersion of a 7 m Ebert spectrograph. The emission was excited by a 2450 MHz electrode Leas discharge in a flowing mixture of $TiCl_{4}, O_{2}$ and He. The effective rotational temperature of the TiO molecules in the $B^{3}\Pi$ state was estimated to be $800 \pm 300^{\circ}\,K$. Rotational analyses have been carried out on the (0-0), (0-1), (1-0) and (1-1) bands up to $J\leq 55$. Twenty-one branches (P, Q, and R) have been assigned for the (0-0) band. These include 12 branches belonging to the $\Delta \Sigma =\pm 1$, case (a) forbidden, subbands. For the other three bands, besides the 9 strong main branches $(\Delta \Sigma =0)$, only a few very weak $^{R}Q$ and $^{P}Q (\Delta \Sigma =\pm 1)$ branch lines could be located. Most of the observed transitions are split into two well resolved components due to $\Lambda$-doubling in the $B^{3}\Pi$ state. An earlier partial rotational analysis of the (0-0) band of the $\gamma^{\prime}$ system by $^{P}hillips {1,2}$ has been largely confirmed, but much extended, and corrected in some details, by the present work.
Description
$^{1}$J. G. Phillips, Astrophya, J. 169, 185 (1971). $^{2}$J. G. Phillips, Astrophys. J. 157, 449 (1969).""
Author Institution: Department of Chemistry, The University of British Columbia
Author Institution: Department of Chemistry, The University of British Columbia