Visible spectrum of titanium dioxide†
Abstract
The 1A1 (0,0,0), Ã1B2 (1,0,0) ←
1A1 (0,0,0) and Ã1B2 (1,1,0) ←
1A1 (0,0,0) transitions. The dispersed fluorescence from the Ã1B2 (0,1,2) and Ã1B2 (1,0,0) levels were combined with previous results to produce an improved set of vibrational parameters for the
1A1 state. The optical Stark effect in the Ã1B2 (0,1,2) ←
1A1 (0,0,0) and Ã1B2 (1,0,0) ←
1A1 (0,0,0) bands were recorded and combined with earlier results for Ã1B2 (1,1,0) ←
1A1 (0,0,0) to determine the permanent electric dipole moment for these states. The origin and harmonic vibrational constants for the Ã1B2 state are determined to be: T000 = 17 593(5) cm−1, ω1 = 876(3) cm−1, ω2 = 184(1) cm−1, and ω3 = 316(2) cm−1. A normal coordinate analysis was performed and Franck–Condon factors calculated.