摘要
A dinuclear cadmium complex [Cd_2（bppb）Cl_4×2DMF]（1）, where bppb is 2-（2-（1 Hbenzo[d]imidazol-2-yl）phenyl）-1-phenyl-~1 H-benzo[d]imidazole, was synthesized and characterized by X-ray single-crystal structure analyses. For 1： C_（58） H_（50） Cd_2 Cl_4 N_（10） O_2, M_r = 1285.68, monoclinic system, space group P2_1/n, a = 16.136（3）, b = 10.612（2）, c = 16.270（3） ？, β = 96.209（2）°, V = 2769.7（9） ？~3, Z = 2, D_c = 1.542 g/cm^3, λ = 0.71073 ？, μ（Mo Kα） = 1.013 mm^（–1）, F（000） = 1296, S = 1.055, R = 0.0393 and wR = 0.1185 for 4876 observed reflections with I 〉 2σ（I）. One 9 mium ion which is five-coordinated by three chloride ions and two nitrogen atoms from bppb. Two cadmium ions are bridged by two chloride ions. The Cd_2（bppb）_2 Cl_2（μ-Cl_2） decomposes at 350 ℃ which is much lower by 70 ℃ than [Cd_2（bpbb）_2 Cl_2（μ-Cl_2）]（420 ℃）. The complex emits blue luminescence in both DMF solution and solid powder. Phenyl ring substituting NH hydrogen atom of benzimidazole group in ligand can not obviously change the UV-vis and luminescence spectra peaks location of the benzimidazole cadmium complex.
A dinuclear cadmium complex [Cd_2（bppb）Cl_4×2DMF]（1）, where bppb is 2-（2-（1 Hbenzo[d]imidazol-2-yl）phenyl）-1-phenyl-~1 H-benzo[d]imidazole, was synthesized and characterized by X-ray single-crystal structure analyses. For 1： C_（58） H_（50） Cd_2 Cl_4 N_（10） O_2, M_r = 1285.68, monoclinic system, space group P2_1/n, a = 16.136（3）, b = 10.612（2）, c = 16.270（3） ？, β = 96.209（2）°, V = 2769.7（9） ？~3, Z = 2, D_c = 1.542 g/cm^3, λ = 0.71073 ？, μ（Mo Kα） = 1.013 mm^（–1）, F（000） = 1296, S = 1.055, R = 0.0393 and wR = 0.1185 for 4876 observed reflections with I 〉 2σ（I）. One 9 mium ion which is five-coordinated by three chloride ions and two nitrogen atoms from bppb. Two cadmium ions are bridged by two chloride ions. The Cd_2（bppb）_2 Cl_2（μ-Cl_2） decomposes at 350 ℃ which is much lower by 70 ℃ than [Cd_2（bpbb）_2 Cl_2（μ-Cl_2）]（420 ℃）. The complex emits blue luminescence in both DMF solution and solid powder. Phenyl ring substituting NH hydrogen atom of benzimidazole group in ligand can not obviously change the UV-vis and luminescence spectra peaks location of the benzimidazole cadmium complex.
基金
financially supported by the Natural Science Foundation of Guangdong Province(No.2014A030307010)
Special funds for public welfare research and capacity building of Guangdong Province(Nos.2015A010105031,2016A010103042 and 2015A020211038)
the National Spark Program Project(No.2015GA780033)
Lingnan Normal University Science Research Foundation(No.LZL1504)
