Journal of Physical Chemistry B, Vol.118, No.40, 11688-11695, 2014
Dissociation Pathways in the Cysteine Dication after Site-Selective Core Ionization
A photoelectronionion coincidence experiment has been carried out on the amino acid molecule cysteine after core-ionization of the O 1s, N 1s, C 1s, and S 2p orbitals. A number of different dissociation channels have been identified. Some of them show strong site-selective dependence that can be attributed to a combination of nuclear motion in the core-ionized state and Auger processes that populate different final electronic states in the dication.