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Bis[μ-2,2'-dimethyl-1,1'-(oxydiethyl-ene)bis-(1H-benzimidazole)-κN:N]bis-[bis-(4-methoxy-benzoato-κO,O')cadmium(II)].

ABSTRACT: The title complex, [Cd(2)(C(8)H(7)O(3))(4)(C(20)H(22)N(4)O)(2)], forms a dimer of the paddle-wheel type, located on a crystallographic inversion centre. The Cd(II) ion is hexa-coordinated by four carboxylate O atoms [Cd⋯O = 2.280 (2)-2.404 (2) Å] from two chelating 4-methoxy-benzoate anions, and two N atoms [Cd⋯N = 2.313 (2) and 2.332 (2) Å] from one chelating 2,2'-dimethyl-3,3'-(oxydiethyl-ene)bis-(1H-benzimidazole) ligand. In the crystal, mol-ecules are linked by a weak inter-molecular C-H⋯O hydrogen bond and an inter-molecular C-H⋯π inter-action.

SUBMITTER: Zhao DY

PROVIDER: S-EPMC2983921 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Bis[μ-2,2'-dimethyl-1,1'-(3-oxapentane-1,5-di-yl)di-1H-benzimidazole-κN:N]bis-[bis-(4-meth-oxy-benzoato)-κO;κO,O'-cobalt(II)].

Project description:The complete mol-ecule of the title complex, [Co(2)(C(8)H(7)O(3))(4)(C(20)H(22)N(4)O)(2)], is a dimer of the paddle-wheel-type generated by crystallographic inversion symmetry. The Co(II) ion is penta-coordinated by three O atoms from two 4-meth-oxy-benzoate anions (one bidentate and one monodentate) and two N atoms from two 2,2'-bis-(2-methyl-1H-benzimidazole)-ether ligands. This results in a very distorted trigonal-bipyramidal geometry for the metal ion, with both N atoms in equatorial sites. The dihedral angle between the benzimidazole ring systems in the ligand is 60.04 (8)°. The configuration of the mol-ecule is supported by intra-molecular C-H⋯O hydrogen bonds.

| S-EPMC3011569 | biostudies-literature

Bis(μ-3-hydroxy-benzoato)-κO:O;κO:O-bis-[bis-(1H-benzimidazole-κN)(3-hydroxy-benzoato-κO)nickel(II)] bis-(1H-benzimidazole-κN)bis-(3-hy-droxy-benzoato-κO)nickel(II) hexa-hydrate.

Project description:The title compound, [Ni(2)(C(7)H(5)O(3))(4)(C(7)H(6)N(2))(4)][Ni(C(7)H(5)O(3))(2)(C(7)H(6)N(2))(2)]·6H(2)O, is a mononuclear/dinuclear nickel(II) cocrystal, the two mol-ecular species inter-acting through hydrogen bonds that involve the uncoordinated water mol-ecules. In the mononuclear species, the Ni(II) ion, located on an inversion center, is coordinated by two 1H-benzimidazole (bzim) ligands and two 3-hydroxy-benzoate (hba) anions in a square-planar geometry. In the centrosymmetric dinuclear species, the Ni(II) ion is coordinated by two bzim ligands and three hba anions in a square-pyramidal geometry; of the two independent hba anions, one bridges two Ni(II) ions with both carboxylate and hydroxyl groups whereas the other coordin-ates in a unidentate manner to the Ni(II) ion. The apical Ni-O(hydrox-yl) bond is 0.39 Å longer than the basal Ni-O(carbox-yl) bonds. The face-to-face separation of 3.326 (9) Å indicates the existence of π-π stacking between parallel bzim ligands of adjacent dinuclear entities. Extensive N-H⋯O and O-H⋯O hydrogen bonds help to stabilize the crystal structure.

| S-EPMC2960256 | biostudies-literature

Bis-(benzimidazole-κN)bis(2-benzoyl-benzoato-κO)copper(II).

Project description:In the title centrosymmetric mononuclear copper(II) compound, [Cu(C(14)H(9)O(3))(2)(C(7)H(6)N(2))(2)], the central Cu(II) ion is coordinated by two N atoms from two symmetry-related benzimidazole (bim) ligands and two O atoms from two symmetry-related 2-benzoyl-benzoate (2-byba) ligands in a square-planar geometry. The mol-ecules are linked into chains running along the b axis by N-H⋯O hydrogen bonds and the chains are cross-linked by C-H⋯π inter-actions.

| S-EPMC2969713 | biostudies-literature

Bis-(1H-benzimidazole-κN)bis(4-methyl-benzoato-κO,O')cobalt(II).

Project description:In the title mononuclear complex, [Co(C(8)H(7)O(2))(2)(C(7)H(6)N(2))(2)], the Co(II) atom is coordinated by four carboxylate O atoms from two 4-methyl-benzoate ligands and two N atoms from two benzimidazole ligands in an octa-hedral coordination geometry. The molecules are assembled via inter-molecular N-H⋯O hydrogen-bonding inter-actions into a three-dimensional network.

| S-EPMC2961044 | biostudies-literature

Bis(1H-benzimidazole-κN)bis-(4-methyl-benzoato-κO,O')copper(II).

Project description:In the title mononuclear complex, [Cu(C(8)H(7)O(2))(2)(C(7)H(6)N(2))(2)], the Cu(II) atom lies on an inversion centre and is coordinated by two O atoms of two monodentate 4-methyl-benzoate ligands and two N atoms of two benzimidazole ligands in a square-planar geometry. The mol-ecules are linked into chains running parallel to the b axis by inter-molecular N-H⋯O hydrogen bonds and by π-π stacking inter-actions [centroid-centroid distance = 3.669 (2) Å] involving centrosymmetrically related imidazole rings.

| S-EPMC2961541 | biostudies-literature

Aqua-bis(1H-imidazole-κN)bis-(4-methyl-benzoato-κO,O')cadmium(II).

Project description:In the title compound, [Cd(C(8)H(7)O(2))(2)(C(3)H(4)N(2))(2)(H(2)O)], the Cd(II) atom is coordinated by four carboxyl-ate O atoms from two bidentate chelating 4-methyl-benzoate ligands, two N atoms from two imidazole ligands and one water mol-ecule in a distorted penta-gonal bipyramidal geometry. Inter-molecular O-H⋯O hydrogen bonds between the coordinated water mol-ecule and the carboxyl-ate O atoms of 4-methyl-benzoate lead to an infinite chain. These chains are further self-assembled into a two-dimensional layer through N-H⋯O hydrogen bonds between the imidazole ligands and carboxyl-ate groups. One of the imidazole ligands is disordered over two positions with site-occupancy factors of 0.737 (4) and 0.263 (4).

| S-EPMC2961263 | biostudies-literature

Diaqua-bis-(1H-imidazole-κN(3))bis-(4-nitro-benzoato-κO(1))cadmium.

Project description:In the centrosymmetric title compound, [Cd(C(7)H(4)NO(4))(2)(C(3)H(4)N(2))(2)(H(2)O)(2)], the Cd(II) atom, located on an inversion center, is coordinated by two N atoms and four O atoms in an octa-hedral geometry. The inter-nal cohesion of the mol-ecule is enhanced by an intra-molecular O-H⋯O hydrogen bond. Inter-molecular O-H⋯O and C-H⋯O hydrogen bonds and π-π contacts [centroid-centroid distance = 3.6549 (2) Å] define two-dimensional networks parallel to (001), which are further connected by weaker C-H⋯O inter-actions into a weakly connected three-dimensional supra-molecular framework.

| S-EPMC3435578 | biostudies-literature

(2,2'-Bipyridine-κN,N')bis-(4-methyl-benzoato-κO,O')zinc(II).

Project description:In the title compound, [Zn(C(8)H(7)O(2))(2)(C(10)H(8)N(2))], the Zn(II) atom is coordinated by four O atoms from two chelating 4-methyl-benzoate ligands and two N atoms from a 2,2'-bipyridine ligand, displaying a disordered octahedral geometry. C-H⋯O hydrogen bonds connect the complex mol-ecules into a three-dimensional supra-molecular structure.

| S-EPMC2961165 | biostudies-literature

Bis(3,5-dicarboxy-benzoato-κO,O')(1,10-phenanthroline-κN,N')cadmium(II).

Project description:The mol-ecule of the title compound, [Cd(C(9)H(5)O(6))(2)(C(12)H(8)N(2))], has crystallographic twofold rotation symmetry. The Cd(II) atom, located on the twofold axis, assumes a CdO(4)N(2) distorted octa-hedral coordination geometry. In the crystal structure, the mol-ecules link to each other by O-H⋯O and C-H⋯O hydrogen bonding to form a three-dimensional supra-molecular network.

| S-EPMC2914923 | biostudies-literature

Bis(μ-2,4-dihy-droxy-benzoato-κO:O')bis-[aqua-(2,4-dihy-droxy-benzoato-κO)(1,10-phenanthroline-κN,N')cadmium(II)].

Project description:In the title centrosymmetric dimeric Cd(II) complex, [Cd(2)(C(7)H(5)O(4))(4)(C(12)H(8)N(2))(2)(H(2)O)(2)], the Cd(II) cation is coord-inated by a bidentate phenanthroline (phen) ligand, three dihy-droxy-benzoate (dhba) anions and one water mol-ecule in a distorted CdN(2)O(4) octa-hedral geometry. Among the dhba anions, two anions bridge two Cd(II) cations to form the dimeric complex with significant different Cd-O bond distances of 2.2215 (19) and 2.406 (2) Å. The centroid-centroid distance of 3.4615 (19) Å between two nearly parallel benzene rings of the dhba and phen ligands coordinating to the same Cd(II) cation indicates the existence of intra-molecular π-π stacking in the complex. Extensive O-H⋯O hydrogen bonding and inter-molecular weak C-H⋯O hydrogen bonding help to stabilize the crystal structure. One hy-droxy group of the monodentate dhba ligand is disordered over two sites with a site-occupancy ratio of 0.9:0.1.

| S-EPMC3006915 | biostudies-literature

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