ELECTRONIC TRANSITION MOMENTS BETWEEN EXCITED SINGLET STATES OF $H_{2}$.

Abstract

The twelve transition moments which connect each of the there ${^{1}\Sigma_{g}}^{+}$ states EF, GK, and HH with the three ${^{1}\Sigma_{u}}^{+}$ states $B, B', B"" \bar{B}$ and with the state $C{^{1}H_{u}}$ have been computed in the range of internuclear distances $1.25 \leq R \leq 15 a.u.$ using accurate electronic wavefunctions. The relative phases of the wavefunctions, which determine the signs of the transition moments, have been consistently defined at all R values. The strong R dependences of the transition moments reflect the R-dependent changes in electronic character of the states involved in these transitions.