High resolution rotational analysis of the B 3Π–X 3Δ (1,0) band of titanium monoxide
作者： Claude Amiot , El Mehdi Azaroual , Paul Luc , Raymond Vetter
DOI: 10.1063/1.469486
关键词: Monoxide 、 Hamiltonian (quantum mechanics) 、 Tunable laser 、 Spectroscopy 、 Ab initio quantum chemistry methods 、 Quantum number 、 Titanium 、 Molecule 、 Chemistry 、 Analytical chemistry 、 Atomic physics
摘要: The B 3Π–X 3Δ (1,0) band of titanium monoxide has been studied at sub‐Doppler resolution (0.002 cm−1) by crossing a beam TiO molecules with cw tunable laser and collecting the laser‐induced fluorescence. rotational structure 42 branches belonging to 3Π–3Δ transition analyzed up quantum numbers equal 94. Spectroscopic data have reduced set 24 molecular constants, using case (a) effective Hamiltonian. rotational, spin–orbit Λ‐doubling constants are discussed in terms leading configurations which give rise X 3Δ B 3Π electronic states. It is shown that for B state, existing ab initio calculations not able reproduce second order effect Λ doubling effect.
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