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Catena-Poly[[tetra-aqua-cobalt(II)]-?-2,2'-dihydroxy-5,5'-diazenediyldibenzoato].

ABSTRACT: In the title compound, [Co(C(14)H(8)N(2)O(6))(H(2)O)(4)](n), each 5,5'-diazenediylbis(2-hydroxy-benzoato) ligand acts as a dicarboxyl-ate bridge, leading to the formation of polymeric chains running in the [10] direction. The Co atom is hexa-coordinated in a distorted octa-hedral geometry by six O atoms [Co-O = 2.039?(4)-2.115?(4)?Å] from two ligands and four water mol-ecules. Inter-molecular O-H?O and O-H?N hydrogen bonds build up a three-dimensional supra-molecular structure.

SUBMITTER: Tan YH

PROVIDER: S-EPMC2960221 | biostudies-literature | 2008 Jan

REPOSITORIES: biostudies-literature

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catena-Poly[[tetra-aqua-cobalt(II)]-μ-2,2'-dihydroxy-5,5'-diazenediyldibenzoato].

Tan Yu-Hui YH Li Yin-Bao YB Ji Fa-Ming FM Xiong Ting-Ting TT Xia Li-Bin LB

Acta crystallographica. Section E, Structure reports online 20080104 Pt 2

In the title compound, [Co(C(14)H(8)N(2)O(6))(H(2)O)(4)](n), each 5,5'-diazenediylbis(2-hydroxy-benzoato) ligand acts as a dicarboxyl-ate bridge, leading to the formation of polymeric chains running in the [10] direction. The Co atom is hexa-coordinated in a distorted octa-hedral geometry by six O atoms [Co-O = 2.039 (4)-2.115 (4) Å] from two ligands and four water mol-ecules. Inter-molecular O-H⋯O and O-H⋯N hydrogen bonds build up a three-dimensional supra-molecular structure. ...[more]

PMID: 21201257

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catena-Poly[[tetra-aqua-zinc(II)]-μ-2,2'-dihydr-oxy-5,5'-diazenediyldibenzoato].

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| S-EPMC2960379 | biostudies-literature

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| S-EPMC2960511 | biostudies-literature

catena-Poly[[[tetra-quazinc(II)]-μ-2,5-dihydroxy-benzene-1,4-diacetato-κO:O] dihydrate].

Project description:The title compound, {[Zn(C(10)H(8)O(6))(H(2)O)(4)]·2H(2)O}(n), is a one-dimensional coordination polymer with 2,5-dihydroxy-benzene-1,4-diacetate acting as bridging ligand. The zigzag chains, extending parallel to [011], are further packed into a three-dimensional network by hydrogen bonds.

| S-EPMC2960134 | biostudies-literature

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catena-Poly[[[diaqua-iron(II)]-μ-pyridine-2,5-dicarboxyl-ato-[tetra-aqua-iron(II)]-μ-pyridine-2,5-dicarboxyl-ato] tetra-hydrate].

Project description:In the crystal structure of the title compound, {[Fe(2)(C(7)H(3)NO(4))(2)(H(2)O)(6)]·4H(2)O}(n), there are two types of coordination for the Fe(II) atoms. One Fe(II) atom is in a distorted octa-hedral N(2)O(4) environment, with two chelating rings from the pyridine-dicarboxyl-ate ligands and two O atoms from the water mol-ecules, while the other is in a distorted octa-hedral O(6) environment with two O atoms from the pyridine-dicarboxyl-ate ligands and four O atoms from the water mol-ecules. Both Fe(II) atoms lie on crystallographic centers of symmetry. The complex possesses an infinite chain structure running along the [101] direction. These chains are inter-connected by the uncoordinated water mol-ecules through O-H⋯O hydrogen bonds.

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