Site-selective resonant Auger spectroscopy of iso-dichloroethylene at the carbon K-edge

► We provide detailed results on electron decay following core excitations to two carbon atoms to the LUMO in different chemical environments to the LUMO in CH2CCl2. ► The experimental results are compared with high-quality theoretical calculations. ► We report calculated valence spectra in the ground-state, C (CH2) and C (CCl2) core-excited states.