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Catena-Poly[[bis-(2,2'-bipyridine-?N,N')cadmium(II)]-?-9,10-dioxo-anthracene-1,5-disulfonato-?O:O].

ABSTRACT: The title complex, [Cd(C(14)H(6)O(8)S(2))(C(10)H(8)N(2))(2)](n), exhibits a chain-like polymeric structure with 9,10-dioxoanthracene-1,5-disulfonate anions bridging Cd(II) atoms in a bis-monodentate mode. The Cd(II) atom shows a distorted octa-hedral environment, with four N atoms from two chelating 2,2'-bipyridine ligands forming the equatorial plane and two sulfonate O atoms from two 9,10-dioxoanthracene-1,5-disulfonate anions occupying the apical positions. Weak C-H?O hydrogen-bonding contacts and ?-? inter-actions [centroid-centroid distances = 3.6920?(12) and 3.7095?(12)?Å] connect the complex mol-ecules into a three-dimensional supra-molecular framework.

SUBMITTER: Jia J

PROVIDER: S-EPMC2971852 | biostudies-other | 2009

REPOSITORIES: biostudies-other

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catena-Poly[[bis-(2,2'-bipyridine-κN,N')cadmium(II)]-μ-9,10-dioxo-anthracene-1,5-disulfonato-κO:O].

Jia Jia J Zhang Youdi Y Zhao Yanhui Y

Acta crystallographica. Section E, Structure reports online 20091114 Pt 12

The title complex, [Cd(C(14)H(6)O(8)S(2))(C(10)H(8)N(2))(2)](n), exhibits a chain-like polymeric structure with 9,10-dioxoanthracene-1,5-disulfonate anions bridging Cd(II) atoms in a bis-monodentate mode. The Cd(II) atom shows a distorted octa-hedral environment, with four N atoms from two chelating 2,2'-bipyridine ligands forming the equatorial plane and two sulfonate O atoms from two 9,10-dioxoanthracene-1,5-disulfonate anions occupying the apical positions. Weak C-H⋯O hydrogen-bonding contact ...[more]

PMID: 21578612

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catena-Poly[[[bis-(1,10-phenanthroline-κN,N')manganese(II)]-μ-9,10-dioxo-anthracene-1,5-disulfonato-κO:O] tetra-hydrate].

Project description:The title complex, {[Mn(C(14)H(6)O(8)S(2))(C(12)H(8)N(2))(2)]·4H(2)O}(n), exhibits a chain-like polymeric structure with 9,10-dioxo-anthracene-1,5-disulfonate anions bridging Mn(II) atoms in a bis-monodentate mode. The unique Mn(II) atom is located on a crystallographic centre of inversion. Four N atoms from two chelating 1,10-phenanthroline ligands and two sulfonate O atoms from two symmetry-related 9,10-dioxoanthracene-1,5-disulfonate anions give rise to a slightly distorted octa-hedral coordination environment around the Mn(II) centre. The centroid of the central ring of the anthraquinone ligand represents another crystallographic centre of inversion. In the crystal structure, inter-ligand π-π stacking [centroid-to-centroid distances 3.532 (1) and 3.497 (3) Å] and inter-molecular O-H⋯O hydrogen-bonding inter-actions assemble the chains into a three-dimensional supra-molecular network.

| S-EPMC2969754 | biostudies-literature

catena-Poly[[tetra-aqua-nickel(II)]-?-(9,10-dioxo-9,10-dihydro-anthracene-1,4,5,8-tetra-carboxyl-ato)-?(2)O(1):O(8)-[tetra-aqua-nickel(II)]-?-4,4'-bipyridine-?(2)N:N'].

Project description:In the crystal of the title polymeric complex, [Ni(2)(C(18)H(4)O(10))(C(10)H(8)N(2))(H(2)O)(8)](n), each Ni(II) cation is coord-in-ated by four water mol-ecules in the equatorial plane, and is further bridged by an 9,10-dioxo-9,10-dihydro-anthracene-1,4,5,8-tetra-carb-oxy-l-ate anion and a 4,4'-bipyridine ligand in the axial directions, forming a distorted octa-hedral geometry. The 9,10-dioxo-9,10-dihydro-anthracene-1,4,5,8-tetra-carboxyl-ate anion is centrosymmetric with the centroid of the quinone ring located about an inversion center; the 4,4'-bipyridine ligand is also centrosymmetric with the mid-point of the C-C bond linking two pyridine rings located about another invertion center. The 9,10-dioxo-9,10-dihydro-anthracene-1,4,5,8-tetra-carboxyl-ate anion and bypiridine ligand bridge the Ni(II) cations, forming a polymeric chain along the b axis. ?-? stacking is observed between pyridine and benzene rings [centroid-centroid distance = 3.705?(2)?Å]. All of the coordinating water mol-ecules are involved in O-H?O hydrogen bonding.

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catena-Poly[[(4,4'-dimethyl-2,2'-bipyridine-?(2) N,N')cadmium]-di-?-bromido].

Project description:In the crystal of the title polymeric compound, [CdBr2(C12H12N2)] n , the Cd(II) cation is located on a twofold rotation axis and is six-coordinated in a distorted octa-hedral geometry formed by two N atoms from the 4,4'-dimethyl-2,2'-bipyridine ligand and by four bridging Br(-) anions. The bridging function of the Br(-) anions leads to a polymeric chain running along the c axis. Weak C-H?? inter-actions observed between adjacent chains are effective in the stabilization of the three-dimensional packing.

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catena-Poly[[(5,5'-dimethyl-2,2'-bipyridine-?(2)N,N')cadmium]-di-?-bromido].

Project description:In the crystal of the title polymeric compound, [CdBr(2)(C(12)H(12)N(2))](n), the Cd(II) cation is located on a twofold rotation axis. The Cd(II) cation is six-coordinated in a distorted octa-hedral geometry formed by two N atoms from the 5,5'-dimethyl-2,2'-bipyridine ligand and four bridging Br(-) anions. The bridging function of the Br(-) anions leads to a polymeric chain running along the c axis.

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catena-Poly[[(5,5'-dimethyl- 2,2'-bipyridine-?N,N')cadmium(II)]-di-?-chlorido].

Project description:The asymmetric unit of the title compound, [CdCl(2)(C(12)H(12)N(2))](n), contains one half-mol-ecule; a twofold rotation axis passes through the Cd atom. The Cd(II) atom is six-coordinated in a distorted octa-hedral configuration by two N atoms from 2,2'-bipyridine-5,5'-dimethyl and four bridging Cl atoms. The bridging function of the chloro atoms leads to a one-dimensional chain structure. There is a ?-? contact between the pyridine rings [centroid-centroid distance = 3.9807?(9)?Å].

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Bis(?-biphenyl-2,2'-dicarboxyl-ato)bis-[aqua-(2,2'-bipyridine)cadmium(II)].

Project description:In the centrosymmetric dinuclear mol-ecule of the title compound, [Cd(2)(C(14)H(8)O(4))(2)(C(10)H(8)N(2))(2)(H(2)O)(2)], the Cd(2+) ion is coordinated by three O atoms from two different diphenyl-dicarboxyl-ate (dpa) ligands (one O,O'-bidentate and one monodentate), a chelating bipyridine ligand and a water mol-ecule, generating an extremely distorted trigonal-prismatic (or irregular) CdN(2)O(4) coordination geometry for the metal ion. The bridging ligands generate an 18-membered ring, which is stabilized by two pairs of intra-molecular O-H?O hydrogen bonds.

| S-EPMC2979598 | biostudies-literature

Poly[[bis-{?2-1,2-bis-[(1H-imidazol-1-yl)meth-yl]benzene}(?4-9,10-dioxo-9,10-dihydro-anthracene-1,4,5,8-tetra-carbox-yl-ato)dicobalt(II)] dihydrate].

Project description:The title complex, {[Co2(C18H4O10)(C14H14N4)2]·2H2O} n was synthesized from CoCl2·6H2O, 9,10-dioxo-9,10-dihydro-anthracene-1,4,5,8-tetra-carb-oxy-lic acid (H4AQTC) and 1,2-bis-[(1H-imidazol-1-yl)meth-yl]benzene (o-bix) in water. The anthraquinone unit is located about a crystallographic center of inversion. Each asymmetric unit therefore contains one Co(II) atom and one o-bix ligand, as well as half an AQTC(4-) ligand and an additional solvent water mol-ecule. The Co(II) ions are tetra-hedrally surrounded by two O atoms from two AQTC(4-) anions and by two N atoms from two o-bix ligands, forming a two-dimensional coordination polymer. The solvent water mol-ecules are connected to the carboxyl-ate groups by O-H?O hydrogen bonds. Additional weak C-H?O hydrogen bonds are observed in the crystal structure.

| S-EPMC3588523 | biostudies-literature

Bis(2,2'-bipyridine)(5,5'-imino-ditetra-zolato)cadmium(II) 2,2'-bipyridine hemisolvate monohydrate.

Project description:The title complex, [Cd(C(2)HN(9))(C(10)H(8)N(2))(2)]·0.5C(10)H(8)N(2)·H(2)O, was prepared under hydro-thermal reaction conditions. The asymmetric unit contains the cadmium complex, half a 2,2'-bipyridine solvent mol-ecule and a solvent water mol-ecule. The Cd(II) ion is coordinated by four N atoms from two 2,2'-bipyridine ligands and two N atoms from an HBTA(-) anion ligand [where H(2)BTA is N,N-bis-(1H-tetra-zol-5-yl)amine], forming an octa-hedral geometry. The complex is linked into a three-dimensional network by O-H⋯N and N-H⋯N hydrogen bonds and by the stacking inter-actions of rings, with distances of 3.5-3.7 Å between the atoms of two parallel 2,2'-bipyridine rings.

| S-EPMC2915158 | biostudies-literature

9,10-Dioxo-9,10-di-hydro-anthracene-1,4-diyl di-acetate.

Project description:In the title compound, C18H12O6, the anthra-quinone ring system is nearly planar [maximum deviation = 0.161?(3)?Å] and both acetate groups are located on the same side of the ring plane. A supra-molecular architecture arises in the crystal owing to ?-? stacking between parallel benzene rings of adjacent mol-ecules [centroid-centroid distance = 3.883?(4)?Å] and weak inter-molecular C-H?O hydrogen bonding.

| S-EPMC3648311 | biostudies-literature

catena-Poly[[(2,2'-bipyridine-κN,N')cadmium]-μ(3)-4-nitro-phthalato-κO:O',O'':O'''].

Project description:In the title polymeric compound, [Cd(C(8)H(3)NO(6))(C(10)H(8)N(2))](n), two O atoms from both carboxyl-ate groups of a nitro-phthalate anion coordinate to the Cd(II) cation, forming a seven-membered chelate ring and two carboxyl-ate O atoms from another two nitro-phthalate anions and a 2,2'-bipyridine ligand coordinate to the Cd cation to complete the distorted octa-hedral coordination geometry. The carboxyl-ate groups of the nitro-phthalate anion adopt a syn-anti bridging mode, linking adjacent Cd(II) cations and forming a polymeric chain running along the a axis. Weak intra- and inter-molecular C-H⋯O hydrogen bonding is present in the crystal structure.

| S-EPMC3051688 | biostudies-literature

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