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Poly[[(μ-benzene-1,4-dicarboxyl-ato)bis-[μ-4-(1H-1,3,7,8-tetra-aza-cyclo-penta-[l]phenanthren-2-yl)benzoato]dizinc] tetra-hydrate].

ABSTRACT: In the title complex, [Zn(2)(C(8)H(4)O(4))(C(20)H(11)N(4)O(2))(2)]·4H(2)O, the Zn(II) atom is six-coordinated by two carboxyl-ate O atoms from one bidentate benzene-1,4-dicarboxyl-ate (1,4-BDC) ligand, two carboxyl-ate O atoms from two different monodentate 4-(1H-1,3,7,8-tetra-aza-cyclo-penta-[l]phenanthren-2-yl)benzoate (HNCP) ligands and two HNCP N atoms. The Zn(II) atoms are bridged by the centrosymmetric 1,4-BDC ligands, forming an extended single-chain structure. Neighbouring single chains are connected by the HNCP ligands from two opposite directions, resulting in a sheet. In addition, there are N-H⋯O hydrogen-bonding inter-actions between adjacent layers. As a result, the polymeric sheets are further extended into a three-dimensional supra-molecular structure.

SUBMITTER: Wang CJ

PROVIDER: S-EPMC3246926 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Poly[[diaqua-(μ(4)-l-tartrato)(μ(2)-l-tartrato)dizinc(II)] tetra-hydrate].

Project description:In the title compound, {[Zn(C(4)H(4)O(6))(H(2)O)]·2H(2)O}(n), the l-tartrate ligands adopt μ(4)- and μ(2)-coordination modes. The Zn(II) atom adopts an octa-hedral geometry and is chelated by two kinds of l-tartrate ligands through the hydr-oxy and carboxyl-ate groups and coordinated by one unchelating carboxyl-ate O atom and one water mol-ecule. In the crystal, the l-tartrate ligands link the Zn(II) atoms, forming a two-dimensional coordination layer; these layers are futher linked into a three-dimensional supra-molecular network by O-H⋯O hydrogen bonds between the two-dimensional coordin-ation layers and the uncoordinated water mol-ecules. The latter are equally disordered over two positions.

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2-Phenyl-1H-1,3,7,8-tetra-azacyclo-penta-[l]phenanthrene.

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