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N-m-cyanophenyl-o-aminobenzoato acid(C15H11N2O2,HNCAB) ligand was syn-thesized through the bromination and nucleophilic reactions.The compound [K(NCAB)]n(1) was synthesized via the hydrothermal reaction of CuSO4,KCO3 and HNCAB,and characterized by elemental analysis,infrared spectra,and X-ray diffraction.The complex crystallizes in orthorho-mbic,space group Iba2 with a = 26.422(2),b = 15.1060(2),c = 6.849(1) ,V = 2733.5(4) 3,Z = 8,C15H11KN2O2,Mr = 290.36,Dc = 1.411 g/cm3,F(000) = 1200 and μ(MoKα) = 0.390 mm-1.The final R = 0.0329 and wR = 0.0788 for 2644 observed reflections with Ⅰ> 2σ(Ⅰ) and R = 0.0397 and wR = 0.0826 for all data.Each carboxylato of NCAB ligand is coordinated to four K ions in an unprecedented μ4-κ2,κ1,κ1,κ1 coordination mode to form a 1-D tube-chain along the c axis.These 1D tube-chains are assembled into an unprecedented 3D framework via K-N bonds.The network of compound 1 exhibits a relatively rare five-connected topology.
Nm-cyanophenyl-o-aminobenzoato acid (C15H11N2O2, HNCAB) ligand was syn-thesized through the bromination and nucleophilic reactions. The compound [K (NCAB)] n (1) was synthesized via the hydrothermal reaction of CuSO4, KCO3 and HNCAB, and characterized by elemental analysis, infrared spectra, and X-ray diffraction. The complex crystallizes in orthorho-mbic, space group Iba2 with a = 26.422 (2), b = 15.1060 (2), c = = 2733.5 (4) 3, Z = 8, C15H11KN2O2, Mr = 290.36, Dc = 1.411 g / cm3, F000 = 1200 and μ MoKα = 0.390 mm-1.The final R = 0.0329 and wR = 0.0788 for 2644 observed reflections with I> 2σ (I) and R = 0.0397 and wR = 0.0826 for all data. Each carboxylato of NCAB ligands coordinated to four K ions in an unprecedented μ4-κ2, κ1, κ1, κ1 coordination mode to form a 1-D tube-chain along the c axis. The 1D tube-chains are assembled into an unprecedented 3D framework via KN bonds.The network of compound 1 exhibits a relatively rare five-connected topology.