摘要: A new coordination polymer [Cd₂(5-IPA)(HL)₂(H₂O)₂]·4H₂O (1) was prepared under hydrothermal conditions based on 5-hydroxy-isophthalic acid (5-H₂IPA) with multi-N-donor ligand 1-(1H-imidazol-4-yl)-3-(4H-tetrazol-5-yl)benzene (H₂L). The complex was characterized by IR spectroscopy, TGA, X-ray powder and single-crystal diffraction. It crystallizes in the monoclinic system, space group C2/c with a=23.6291(18), b=9.9847(8), c=17.7244(14) Å, β=124.6180(10)°, V=3441.4(5) ų, Z=4, C₂₈H₃₀N₁₂O₁₁Cd₂, M_r=935.44, D_c=1.805 g/cm³, μ=1.313 mm^-1, S=1.055, F(000)=1864, the final R=0.049 and wR=0.1315 for 2985 observed reflections (I>2σ(I)). The central metal Cd(II) atoms with octahedral coordination geometry are six-coordinated by three oxygen and three nitrogen atoms. The HL^- ligands from the deprotonated H₂L connect Cd(II) atoms to form two-dimensional (2D) double-layer fes networks which are further pillared by 5-IPA²⁻ ligands into a rare binodal (3, 4)-connected three-dimensional (3D) architecture with a (4·6·8)(4·6²·8³) fsc-3,4-C2/c topology. Solid state luminescent property and sorption property of 1 have been investigated.