Synthesis and characterization of Copper (I) complexes

In the last years, copper (I) complexes have been identified as favourable candidates as active materials in light-emitting electrochemical cells (LECs). [1] A series of copper (I) complexes with N,N-bidentate ligands, based on imidazo[1,5-a]pyridines, with absorption in the ultraviolet region and emission in the visible were synthesized. These ligands have been obtained through a simple one-pot procedure [2] and for each ligand both the corresponding heteroleptic (with POP, bis[2- (diphenylphosphino)-phenyl]ether) and homoleptic complexes were synthesized. In both cases, the coordination environment around Cu I should results in a tetrahedral geometry, the resolution of the crystal structures of some of these complexes is in progress.