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

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. By solvent volatilization method, three late-model inorganic-organic hybrid materials, [PbI3(BTA-1)]n (1)，[Cu2I3(BTA-2)]n (2) and [ZnI3(BTA-3)]n (3) (BTA = 1H-benzotriazole), have been prepared. The fluorescence properties showed that complex 1 and 2 produced green light respectively. While complex 3 exhibited near white light (CIE: 0.332,0.395). It shows that complex 3 can be used as a white light emitting material for direct blue light excitation. [Display omitted] •Three luminescent inorganic-organic hybrid materials, 1–3, have been was prepared by a solvent volatilization method.•Based on different metal iodides, they stack in different structural modes with different cluster cores, such as [PbI6]2- in 1, [Cu4I6]2- in 2 and [ZnI3N]2- in 3.•This regulation realize complexes' emission from green light to near-white light.•Complex 3 exhibited near white light when excited at 424 nm. It shows 3 can be used as a white light emitting material for direct blue light excitation.