Electronic transition moments for the A 2Σ+→X 2Π system of HCl+

The emission spectra of 31 bands of HCl+(A 2Σ+→X 2Π) have been obtained using hollow cathode discharges. Relative intensities were determined by comparison with computer generated spectra. Treatment of the data within the r-centroid (r̄v′v″) approximation shows that the electronic transition moment decreases strongly for large internuclear distances (r centroid). The transition moment can be fitted by the expression R2e =0.543r̄ 3.29v′v″ ×exp(−2.69r̄ 2v′v″) in atomic units for 1.1