DIABATIC POTENTIALS FOR THE 1 1A'' AND 2 1A'' STATES OF H2S

Diabatic 1 1A'' and 2 1A'' states have been generated for the H2S mole cule, along a local mode of asymmetric dissociation. The calculations obtain a bound 1 1A'' state crossing a repulsive 2 1A'' state, with a Landau-Zener probability of transition between them of 99%, in accord with recent analyses of the observed photodissociation spectrum of H2S at 195 nm.