摘要:
Two nickel coordination polymers [Ni(H2O)(C4H4O5)] center dot H2O 1 and [Ni(H2O)(mal)(phen)] 2, have been hydrothermally synthesized and structurally characterized by single crystal X-ray diffraction. Crystal data for 1: C4H8O7Ni, monoclinic Cc, a = 13.156(3) angstrom, b = 7.5436(15) angstrom, c = 9.6982(19) angstrom, beta = 130.96(3)degrees, Z = 4. Crystal data for 2: C16H14N2O6Ni, orthorhombic Pna2(1), a = 9.6113(19) angstrom, b = 19.691(4) angstrom, c = 8.0944(16) angstrom, Z = 4. Compound I is constructed from [Ni(H2O)(C4H4O5)] sheets pillared through beta-carboxylate groups into a 3D framework, which exhibits a diamond-like network. Compound 2 exhibits a 3D supramolecular network. To our knowledge, compound 1 represents the first diamond-like topology in the system of metal malate. Other characterizations by elemental analysis, IR and TG are also described. The magnetic behavior of compound 1 has been studied. (c) 2005 Elsevier Inc. All rights reserved.