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A double-T-shaped ligand (H4BPTC) and bis(2-benzimidazole)alkanes as the spacers have been firstly used to direct the assembly of a 2D coordination polymer with wavy parquet network topology, [Zn(BPTC)0.5(H2C2EIm)(H2O)]n (1, C24H18ZnN4O5, Mr = 507.79, H4BPTC = biphenyl-3,3’,4,4’-tetracarboxylic acid, H2C2EIm = 2,2’-(1,2-ethanediyl)-bis(1H-benzi- midazole), which was determined by single-crystal X-ray diffraction analysis. The crystal belongs to the monoclinic system, space group P21/n with a = 1.1844(5), b = 1.4019(5), c = 1.4026(5) nm, β = 108.359(5)°, V = 2.2104(15) nm3, Z = 4, Dc = 1.526 g/cm3, μ(MoKα) = 1.156 mm-1, F(000) = 1040, S = 1.038, the final R = 0.0427 and wR = 0.0793 for 3834 reflections with I > 2σ(I). The compound units are linked through BPTC ligands into a wavilness parquet 2D layer and further connected into a 3D framework via π-π packing interactions between the adjacent H2C2EIm ligands and weak N-H…O hydrogen bonding between uncoordinated carboxylate and the nitrogen atoms of H2C2EIm as well as the free water molecules.
A double-T-shaped ligand (H4BPTC) and bis (2-benzimidazole) alkanes as the spacers have been employed to direct the assembly of a 2D coordination polymer with wavy parquet network topology, [Zn (BPTC) 0.5 (H2C2EIm) H2O)] n (1, C24H18ZnN4O5, Mr = 507.79, H4BPTC = biphenyl-3,3 ’, 4,4’-tetracarboxylic acid, H2C2EIm = 2,2’-1,2-ethanediyl- - midazole), which was determined by single-crystal X-ray diffraction analysis. The crystal belongs to the monoclinic system, space group P21 / n with a = 1.1844 (5), b = 1.4019 ), β = 108.359 (5) °, V = 2.2104 (15) nm3, Z = 4, Dc = 1.526 g / cm3, μ (MoKα) = 1.156 mm-1, F , the final R = 0.0427 and wR = 0.0793 for 3834 reflections with I> 2σ (I). The compound units are linked through BPTC ligands into a wavilness parquet 2D layer and further connected into a 3D framework via π-π packing interactions between the adjacent H2C2EIm ligands and weak NH ... O hydrogen bonding between uncoordinated carboxylate and t he nitrogen atoms of H2C2EIm as well as the free water molecules.