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The photofragmentation of state-selected BrCl(super +) cations is investigated by velocity-map ion-imaging methods. The first high-resolution imaging studies of the photoelectrons arising in the multiphoton ionization of BrCl, resonance enhanced at the two photon energy and the Br(super +) fragment ions arising in one-color resonance-enhanced multiphoton ionization (REMPI) of BrCl at various wavelengths is reported.

The photofragmentation of state-selected BrCl+ cations has been investigated by velocity-map ion-imaging methods. Detailed analyses of the 79Br+ fragment velocities lead to the most precise values yet reported for (i) the spin−orbit coupling constant for the X2Π state, A = −2070 ± 4 cm-1; (ii) the bond dissociation energies of both states of 79Br35Cl+, 25019 ± 4 cm-1 (X2Π3/2) and 22949 ± 2 cm-1 (X2Π1/2); and (iii) the adiabatic ionization thresholds for forming 79Br35Cl+ parent ions in their X2Π3/2 and X2Π1/2 states, 88292 ± 6 and 90362 ± 4 cm-1, respectively. [ABSTRACT FROM AUTHOR]