Luminescent complexes of CuI halides with functionalized tertiary phosphines

Depending on the Cu-I halide, ligand to metal ratio, and reaction conditions, complexes with various central CuX clusters can be prepared. A series of reactions of Cu-I halides with P-III containing ligands was carried out in different molar ratios in different solvents, yielding new Cu-I complexes, which were characterized by P-31 NMR and X-ray diffraction. The P-III containing ligands were based on tertiary phosphines carrying at least one organic functional group (e.g. CN, COOH) on aryl substituents. Luminescence in the complexes and its dependence on various conditions (i.e. solvent, temperature, etc.) was studied.