Electronic spectra of the OH(A2Σ+)-H2 and OH(A2Σ+)-D2 complexes

The electronic spectra for the OHH2 and OHD2 complexes have been predicted from first principles. Our method relies on high quality ab initio calculations of a minimum energy path and adiabatic separation of the bending vibrational modes. The model allows a simple interpretation and tentative assignment of an observed experimental spectrum of Loomis and Lester.