Photochemistry of copper(II) chlorocomplexes in acetonitrile: Trapping the ligand-to-metal charge transfer excited state relaxations pathways

- Relaxation pathways of the LMCT-excited Cu(II) Cl-complexes in CH3CN were revealed.
- Combination of the steady-state photolysis and ultrafast spectroscopy was used.
- Major part of the LMCT-excited complexes relaxes to ground state parent complex.
- Minor fraction of the LMCT-excited complexes dissociates into photoproducts.
- [CuIICln]2−n photodissociate into [CuIICln−1]3−n + Cl− and [CuICln−1]2−n + Cl.