| Abstract: A new 1D ladder-like coordination ploymer of {[Cu2L2(H2O)(4,4′-bpy)]·DMF·3H2O}n (1) was synthesized with Cu(ClO4)2, H2L (phenyliminodiacetic acid, C6H5N(CH2COOH)2) and 4,4′-bpy (4,4′-bipyridyl) by slow evaporation at room temperature. The composition and structure of complex 1 were characterized by elemental analysis, infrared spectroscopy, thermogravimetric analysis and X-ray crystallography. The result of single-crystal X-ray diffraction analysis reveals that 1 crystallizes in the triclinic crystal system with P1 space group, a=0.873 65(16) nm, b=0.991 32(18) nm, c=2.179 6(4) nm, α=100.848(3)°, β=100.694(3)°, γ=91.023(3)°, V=1.819 0(6) nm3, Z=2, Dc=1.539 g·cm-3, F(000)=872, R1=0.065 6, wR2=0.184 8 (I>2σ(I)). In complex 1, the interconnection of Cu(Ⅱ) ions by chelating and bridging of L2- anions result in a 1D zigzag chain structure of [Cu2L2(H2O)]n. The two adjacent 1D zigzag chains are further linked by 4,4′-bpy ligands to form a 1D ladder-like structure of [Cu2L2(H2O)(4,4′-bpy)]n. Magnetic susceptibility measurement of complex 1 indicates the presence of weak antiferromagnetic interactions between the neighboring Cu(Ⅱ) ions. CCDC: 871729. |
