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Catena-Poly[[diaqua-copper(II)]-?-7-oxa-bicyclo-[2.2.1]heptane-2,3-dicarboxyl-ato].

ABSTRACT: In the crystal structure of the title compound, [Cu(C(8)H(8)O(5))(H(2)O)(2)](n), the Cu(II) cation is in a Jahn-Teller distorted six-coordination by two O atoms from water molecules, by the bridging O atom from the bicyclo moiety, by two carboxylate O atoms from two different carboxylate groups and by one carboxylate O atom from a symmetry-related bridging ligand.The polymeric structure is made up from double-strands propagating parallel to the c axis that are held together via inter-molecular O-H?O hydrogen bonds.

SUBMITTER: Wang YY

PROVIDER: S-EPMC2968279 | biostudies-literature | 2009 Jan

REPOSITORIES: biostudies-literature

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catena-Poly[[diaqua-copper(II)]-μ-7-oxa-bicyclo-[2.2.1]heptane-2,3-dicarboxyl-ato].

Wang Yun-Yun YY Hu Rui-Ding RD Wang Yan-Jun YJ

Acta crystallographica. Section E, Structure reports online 20090110 Pt 2

In the crystal structure of the title compound, [Cu(C(8)H(8)O(5))(H(2)O)(2)](n), the Cu(II) cation is in a Jahn-Teller distorted six-coordination by two O atoms from water molecules, by the bridging O atom from the bicyclo moiety, by two carboxylate O atoms from two different carboxylate groups and by one carboxylate O atom from a symmetry-related bridging ligand.The polymeric structure is made up from double-strands propagating parallel to the c axis that are held together via inter-molecular O ...[more]

PMID: 21581776

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catena-Poly[[diaqua-manganese(II)]-?-7-oxabicyclo-[2.2.1]heptane-2,3-dicarboxyl-ato].

Project description:In the title polymer, [Mn(C(8)H(8)O(5))(H(2)O)(2)](n), the Mn(II) atom is in a distorted octa-hedral coordination mode, binding to the bridging O atom of the bicyclo-heptane unit, two O atoms from corresponding carboxyl-ate groups, one carboxyl-ate O atom from a symmetry-related bridging ligand and two water O atoms. This arrangement leads to the formation of polymeric chains propagating parallel to [001]. The crystal structure is stabilized by several O-H?O hydrogen-bonding inter-actions involving the coordinated water mol-ecules as donors and the carboxyl-ate O atoms as acceptors.

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Project description:The polymeric title complex, [Co(C(8)H(8)O(5))(H(2)O)(2)](n) was synthesized by reaction of cobalt acetate with 7-oxabicyclo-[2,2,1]heptane-2,3-dicarb-oxy-lic anhydride. The Co(II) ion is six-coordinated in a distorted octa-hedral environment, binding to two water O atoms, to the ether O atom of the bicyclo-heptane unit, to two carboxyl-ate O atoms from two different carboxyl-ate groups of the same anion and to one carboxyl-ate O atom from a symmetry-related anion. The bridging character of the dianion leads to the formation of ribbons along [001]. The ribbons are linked into a layered network parallel to (010) by several O-H?O hydrogen-bonding inter-actions involving the coordinating water mol-ecules as donors and the carboxyl-ate O atoms of neighbouring ribbons as acceptors. The crystal under investigation was an inversion twin.

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Tris(2-amino-1,3-thia-zole-?N)(7-oxa-bicyclo-[2.2.1]heptane-2,3-dicarboxyl-ato-?O,O,O)cadmium(II) dihydrate.

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Poly[bis-(1H-imidazole)(?(3)-7-oxabicyclo-[2.2.1]heptane-2,3-dicarboxyl-ato)cadmium(II)].

Project description:The title compound, [Cd(C(8)H(8)O(5))(C(3)H(4)N(2))(2)](n), was synthesized by the reaction of 7-oxabicyclo-[2.2.1]heptane-2,3-dicarboxylic anhydride, cadmium acetate and imidazole. The Cd(II) atom is seven-coordinated in a distorted penta-gonal-bipyramidal configuration by five O atoms from carboxyl-ate groups of three 7-oxabicyclo-[2.2.1]heptane-2,3-dicarboxylate ligands and two N atoms from two imidazole ligands. The crystal structure is stabilized by N-H?O and C-H?O hydrogen-bonding and C-H?? inter-actions.

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catena-Poly[[[diaqua-iron(II)]-μ-pyrazine-2,3-dicarboxyl-ato] dihydrate].

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catena-Poly[[[diaqua-copper(II)]-μ-quinoline-2,3-dicarboxyl-ato-κ(3)N,O(2):O(3)] monohydrate].

Project description:In the title compound, {[Cu(C(11)H(5)NO(4))(H(2)O)(2)]·H(2)O}(n), the Cu(II) ion is five-coordinated by two O atoms and one N atom of two symmetry-related quinoline-2,3-dicarboxyl-ate ligands, and two water mol-ecules. The water mol-ecules occupy basal and apical positions of the square-pyramidal coordination polyhedron. Each quinoline-2,3-dicarboxyl-ate dianion bridges two adjacent Cu(II) ions, forming a polymeric chain along [010]. The chains are further connected via O-H⋯O hydrogen-bonding inter-actions and quinoline ring π-π inter-actions [centroid-centroid distance = 3.725 (4) Å], generating a three-dimensional structure. Lattice water mol-ecules participate in the crystal structure via O-H⋯O hydrogen bonds.

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Tris(1H-imidazole-κN)(7-oxabicyclo-[2.2.1]heptane-2,3-dicarboxyl-ato-κO,O,O)cobalt(II) 3.35-hydrate.

Project description:In the crystal structure of the title compound, [Co(C(8)H(8)O(5))(C(3)H(4)N(2))(3)]·3.35H(2)O, the central Co(II) ion is in a slightly distorted octa-hedral environment, coordinated by the bridg-ing O atom from the bicyclo-[2.2.1]heptane ligand, by two carboxyl-ate O atoms from two different carboxyl-ate groups and by three N atoms from imidazole ligands. Uncoordinated water mol-ecules, some of them disordered, are present in the crystal structure. In the crystal structure, mol-ecules are linked by O-H⋯O, N-H⋯O and O-H⋯N hydrogen-bonding inter-actions.

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