Tricopper(I) Complexes Encapsulating a {Cu3X3} Core Structure (X = Cl, Br, and I) in a Polyaza Cryptand

We report the synthesis and luminescent properties of halide-bridged tricopper(I) complexes with a polyaza cryptand having three 2,6-bis(aminomethyl)pyridyl spacers. The asymmetric {Cu3X3} structure was formed in the ligand shell, and emitted in both of the solid and solution states. DFT calculation and (HNMR)-H-1 spectroscopic studies were performed on these luminescent cage-type compounds.