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Catena-Poly[[aqua-(imidazole)-cadmium(II)]-?(3)-benzene-1,3-dicarboxyl-ato].

ABSTRACT: In the title compound, [Cd(C(8)H(4)O(4))(C(3)H(4)N(2))(H(2)O)](n), the Cd(II) ion is seven-coordinated by five O atoms from three crystallographically independent benzene-1,3-carboxylate ligands, one N atom from the imidazole ligand and one coordinated water mol-ecule. Neighboring Cd(II) ions are bridged by the benzene-1,3-dicarboxyl-ate ligands, forming a zigzag polymeric chain structure. These chains are further extended into a three-dimensional supra-molecular structure through O-H?O and N-H?O hydrogen bonds.

SUBMITTER: Zeng Z

PROVIDER: S-EPMC3006711 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature

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catena-Poly[[aqua-(imidazole)-cadmium(II)]-μ(3)-benzene-1,3-dicarboxyl-ato].

Zeng Zhengfang Z Xu Hongyan H

Acta crystallographica. Section E, Structure reports online 20100616 Pt 7

In the title compound, [Cd(C(8)H(4)O(4))(C(3)H(4)N(2))(H(2)O)](n), the Cd(II) ion is seven-coordinated by five O atoms from three crystallographically independent benzene-1,3-carboxylate ligands, one N atom from the imidazole ligand and one coordinated water mol-ecule. Neighboring Cd(II) ions are bridged by the benzene-1,3-dicarboxyl-ate ligands, forming a zigzag polymeric chain structure. These chains are further extended into a three-dimensional supra-molecular structure through O-H⋯O and N-H⋯ ...[more]

PMID: 21587718

Similar Datasets

catena-Poly[[[2-(2-pyrid-yl)-1H-benz-imidazole]cadmium(II)]-?-benzene-1,4-dicarboxyl-ato].

Project description:In the title compound, [Cd(C(8)H(4)O(4))(C(12)H(9)N(3))](n), each Cd(II) ion is six-coordinated in a distorted octa-hedral geometry by four carboxyl-ate O atoms from two benzene-1,4-dicarboxyl-ate anions (L), and two N atoms from one 2-(2-pyrid-yl)benzimidazole ligand. The neighboring Cd(II) ions are bridged by the L ligands, forming a zigzag polymeric chain structure. The chains are further extended into a three-dimensional supra-molecular structure through inter-molecular N-H?O hydrogen bonds.

| S-EPMC2977500 | biostudies-literature

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Project description:A new cadmium(II) coordination polymer, {[Cd(C(8)H(4)O(4))(C(12)H(8)N(2))(H(2)O)]·0.5C(8)H(6)O(4)}(n), has been synthesized under hydro-thermal conditions. The asymmetric unit contains one Cd(II) atom, one benzene-1,4-dicarboxyl-ate anion, one 1,10-phenanthroline ligand, one coordinated water mol-ecule and half of an uncoordinated benzene-1,4-dicaboxylic acid solvent mol-ecule. The Cd(II) atom is in the centre of a monocapped distorted octa-hedron made up of four O atoms of two chelating benzene-1,4-dicarboxyl-ate anions, one water O atom and two 1,10-phenanthroline N atoms. The metal centres are connected via bis-chelating benzene-1,4-dicarboxyl-ate anions into a zigzag chain structure along [001]. These chains are further connected by O-H?O hydrogen bonds between the water mol-ecules and adjacent carboxyl-ate O atoms. Additional O-H?O hydrogen bonding between the uncoordinated benzene-1,4-dicaboxylic acid mol-ecules along [010] consolidates the structure.

| S-EPMC2968137 | biostudies-literature

catena-Poly[[bis-(1H-imidazole-?N)copper(II)]-?-benzene-1,4-dicarboxyl-ato-?O:O].

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Project description:In the title compound, {[Cd(C(8)H(4)O(4))(C(11)H(6)N(2)O)(H(2)O)(3)]·2H(2)O}(n), the Cd(II) atom is seven-coordinated by two N atoms from the phenanthroline-derived 4,5-diaza-fluorene-9-one ligand, two O atoms from one bidentate benzene-1,3-dicarboxyl-ate ligand and three O atoms from the three water mol-ecules in a distorted penta-gonal-bipyramidal arrangement. Moreover, there are two dissociative water mol-ecules in each unit. Neighbouring units inter-act through π-π inter-actions [centroid-centroid distances = 3.325 (3) and 3.358 (4) Å] and O-H⋯O hydrogen-bonding, resulting in a two-dimensional network extending parallel to (001).

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catena-Poly[[aqua-(1,10-phenanthroline)cadmium(II)]-μ-benzene-1,4-di-carboxyl-ato].

Project description:The title compound, [Cd(C(8)H(4)O(4))(C(12)H(8)N(2))(H(2)O)](n), is a new coordination polymer of benzene-1,4-dicarboxyl-ate with cadmium(II) and 1,10-phenanthroline. The Cd(II) ion is coordinated by two N atoms from the 1,10-phenanthroline mol-ecule, three O atoms from two crystallographically independent benzene-1,4-dicarboxyl-ate ligands and the O atom of a coordinated water mol-ecule, forming a heavily distorted octa-hedron. The 1,10-phenanthroline ligand is approximately planar within 0.073 (4) Å. The two different benzene-1,4-dicarboxyl-ate ligands each coordinate to two Cd(II) ions in bidentate and monodentate modes, forming an infinite zigzag chain. Adjacent chains are packed tightly by strong π-π inter-actions [centroid-centroid distances = 3.851 (2) and 3.859 (2) Å] between the aromatic rings of the benzene-1,4-dicarboxyl-ate ligand and the 1,10-phenanthroline of a neighboring chain, forming a sheet parallel to (011). Different sheets are linked together via O-H⋯O hydrogen bonds between the coordinated water mol-ecules and the O atoms of the carboxyl-ate groups, forming a three-dimensional network.

| S-EPMC2967922 | biostudies-literature

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Project description:The title complex, [Cd(C(6)H(2)N(2)O(4))(H(2)O)(3)](n), is a new monoclinic polymorph. The ortho-rhom-bic form has previously been reported [Ma et al. (2006 ?). Acta Cryst. E62, m2528-m2529]. The Cd-N and Cd-O bond lengths range from 2.265?(3) to 2.333?(3)?Å; a weak Cd-O inter-action is also present, the inter-atomic distance being 2.658?(4)?Å. The Cd(II) ions, which have a distorted penta-gonal-bipyramidal geometry, are bridged by pyrazine-2,3-dicarboxyl-ato ligands, forming a zigzag chain structure. The chains are connected by O-H?O hydrogen bonds into a three-dimensional framework.

| S-EPMC2977175 | biostudies-literature

catena-Poly[[[aqua-bis(1H-imidazole-?N)copper(II)]-?-naphthalene-1,4-dicarboxyl-ato-?O:O] dihydrate].

Project description:In the title compound, {[Cu(C(12)H(6)O(4))(C(3)H(4)N(2))(2)(H(2)O)]·2H(2)O}(n), the Cu(II) cation is coordinated by two naphthalene-1,4-dicarboxyl-ate (naph) dianions, two imidazole mol-ecules and one water mol-ecule in a distorted square-pyramidal geometry. The Cu-O bond distance in the apical direction is 0.509?(3)?Å longer than the mean Cu-O bond distance in the basal plane. The naph dianion bridges two Cu(II) cations, forming a one-dimensional polymeric chain. The coordinated water mol-ecule is hydrogen-bonded to the carboxylate groups and imidazole ligands of adjacent polymeric chains, forming a three-dimensional supra-molecular structure. No ?-? stacking is observed in the crystal structure. One solvent water molecule is disordered equally over two positions.

| S-EPMC2961746 | biostudies-literature

Poly[[aqua-calcium(II)]-?(4)-1H-imidazole-4,5-dicarboxyl-ato].

Project description:In the title compound, [Ca(C(5)H(2)N(2)O(4))(H(2)O)](n), the Ca(2+) cations are eigthtfold coordinated by six O atoms and one N atom of four symmetry-related anions and one water mol-ecule within an irregular polyhedron. These CaO(7)N polyhedra are connected via the anions into a three-dimensional network. The anions are additionally linked by N-H?O and O-H?O hydrogen bonding.

| S-EPMC3009373 | biostudies-literature

catena-Poly[[aqua-bis-(N-benzyl-adenine-?N)copper(II)]-?-benzene-1,4-dicarboxyl-ato-?O:O].

Project description:In the title compound, [Cu(C(8)H(4)O(4))(C(12)H(11)N(5))(2)(H(2)O)](n), the Cu(II) ion is five-coordinated by two carboxyl-ate O atoms from two symmetry-related benzene-1,4-dicarboxyl-ate ligands, two N atoms from two symmetry-related N(6)-benzyl-adenine ligands and one water O atom in a square-pyramidal environment. The Cu(II) and water O atoms lie on a twofold rotation axis, and the benzene-1,4-dicarboxyl-ate ligand lies on an inversion center. The water O atom occupies the apical position and the basal plane is occupied by two O atoms and two N atoms. Each benzene-1,4-dicarboxyl-ate anion acts as a bis-monodentate ligand that binds two Cu(II) cations, forming an infinite chain extending parallel to [001]. The N(6)-benzyl-adenine ligands are attached on both sides of the chain. Neighboring chains are further inter-connected into the resulting three-dimensional supra-molecular architecture via O-H?O, N-H?O and N-H?N hydrogen bonds.

| S-EPMC3200734 | biostudies-literature

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