(3)Delta bound and continuum states of the TiO molecule

A detailed study of the various Rydberg resonance series found in the (3)De lta symmetry for electron collisions with the titanium oxide cation is pres ented. A three-state valence configuration interaction (VCI) approximation is used to represent the target molecular states of the cation within the R -matrix methodology. Electron scattering calculations by the TiO+ ion yield eigenphase sums, their derivative and associated cross sections. Strong re sonance structure is found in the (3)Delta scattering symmetry with the pro minent resonance series being comprehensively identified and analysed. Seve ral interloper resonances are revealed which have been assigned to the appr opriate parent state. The presence of these interlopers is seen to cause pe rturbations on the relevant spectral series disrupting the regular Rydberg series pattern. Closed channel electron scattering calculations by the TiO cation provide bound and Rydberg states of the TiO complex which are ident ified and analysed in this letter.