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A new Gd(II) complex [Gd2(μ-phth)3(b-pd)(H2O)5]n (phth = o-phthalato, b-pd = N,N- bipyridine) has been synthesized by the reaction of GdO2 with o-phthalate, H2O and 2,2′-bipyridine. The crystal structure has been determined by single-crystal X-ray diffraction. The crystal is of triclinic, space group P1 with a = 11.82920(10), b = 13.53550(10), c = 13.7381(2) ’, α = 88.99, β = 66.9120(10), γ = 66.2370(10)°, V = 1826.02(3) ’3, Dc = 1.915 g/cm3, C34H30N2O17Gd2, Mr = 1053.10, F(000) = 1024, μ = 3.680 mm–1, Z = 2, R = 0.0612 and wR = 0.1320 for 6259 observed reflections (I > 2σ(I)). In the title complex, the Gd(II) ions are bridged by o-phthalate ligands in a bidentate mode, producing a 1D infi- nite chain structure. Each eight-coordinated Gd(II) center is coordinated by eight oxygen atoms from phth to give a distorted dodecahedral geometry, and each nine-coordinated Gd(II) center is coordi- nated by two N atoms from b-pd and seven oxygen atoms from phth to give a distorted geometry of capped square antiprism. The chains are linked by π-π interactions and hydrogen bonds between oxy- gen atoms of carboxylate groups and H2O molecules and hydrogen atoms of H2O, b-pd and o-phth molecules, forming an unusual three-dimensional coordination polymer.
A new Gd (II) complex [Gd2 (μ-phth) 3 (b-pd) (H2O) 5] n (phth = o-phthalato, b- pd = N, N- bipyridine) has been synthesized by the reaction of The crystal structure of has been determined by single-crystal X-ray diffraction. The crystal is of triclinic, space group P1 with a = 11.82920 (10), b = 13.53550 Α = 88.99, β = 66.9120 (10), γ = 66.2370 (10) °, V = 1826.02 (3) ’3, Dc = 1.915 g / cm3, C34H30N2O17Gd2, Mr = = 1053.10, F (000) = 1024, μ = 3.680 mm-1, Z = 2, R = 0.0612 and wR = 0.1320 for 6259 observed reflections (I> 2σ (I) Each of the eight-coordinated Gd (II) centers is coordinated by eight oxygen atoms from phth to give a distorted dodecahedral geometry, and each nine -coordinated Gd (II) center is coordi- nated by two N atoms from b-pd and seven oxygen atoms from phth to give a distorted g The chains are linked by π-π interactions and hydrogen bonds between oxy-gen atoms of carboxylate groups and H2O molecules and hydrogen atoms of H2O, b-pd and o-phth molecules, forming an unusual three-dimensional coordination polymer.