Effects of different metal centers on the structure and luminescence properties of hybrid materials

Abstract

Three novel inorganic-organic hybrid materials, [PbI3(BTA-1)]n (1) (BTA-1 = N-((1H-benzotriazole-1-yl)methyl)-N,N-dimethyl ethylammonium)，[Cu2I3(BTA-2)]n (2) (BTA-2 = 1-(1H-benzotriazole-1-yl)-N,N,N-trimethylammonium carbamate) and [ZnI3(BTA-3)]n (3) (BTA-3 = 3-(1H-benzotriazole-1-yl)-N,N,N-trimethylpropane-1-ammonium), have been was prepared by a solvent volatilization method. All three complexes have been characterized by single-crystal X-ray diffraction, powder X-ray diffraction (PXRD) and thermogravimetric (TG) analysis. Based on different metal iodides, they stack in different structural modes with different cluster cores, such as [PbI6]2- in complex 1, [Cu4I6]2- in complex 2 and [ZnI3N]2- in complex 3. The fluorescence analysis show that complex 1 and 2 produced green light when the excitation wavelength was 318 nm and 328 nm, respectively. While complex 3 exhibited near white light when the excitation wavelength was 424 nm (CIE: 0.332, 0.395). It shows that complex 3 can be used as a white light emitting material for direct blue light excitation.