Effect of anions on structure and luminescence property of Cu(I)-4,6-di(3-pyridylethynyl)dibenzothiophene complexes

A conjugated dipyridyl ligand, di(3-pyridylethynyl)dibenzothiophene (dpdbt) is designed to synthesize a class of Cu(I) compounds with various anions, Cu4I4(dpdbt)2 (1), Cu2Br2(dpdbt)2 (2) and [(CuCN)8(dpdbt)12]n (3). The X-ray structures and the photoluminescent properties of the three compounds are highly dependent on the halide/pseudo-halide anions.79