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Hexakis(1H-imidazole-?N)cobalt(II) triaqua-tris(1H-imidazole-?N)cobalt(II) bis-(naphthalene-1,4-dicarboxyl-ate).

ABSTRACT: The asymmetric unit of the title compound, [Co(C(3)H(4)N(2))(6)][Co(C(3)H(4)N(2))(3)(H(2)O)(3)](C(12)H(6)O(4))(2), contains two halves of crystallographically independent Co(II) complex cations, each assuming a distorted octa-hedral geometry, and one uncoordinated naphthalene-1,4-dicarboxyl-ate dianion. One Co(II) cation is located on an inversion center and is coordinated by six imidazole mol-ecules, while the other Co(II) cation is located on a twofold rotation axis and is coordinated by three water and three imidazole mol-ecules. The uncoordinated naphthalene-1,4-dicarboxyl-ate dianion links both Co(II) complex cations via O-H?O and N-H?O hydrogen bonding. One imidazole ligand is equally disordered over two sites about a twofold rotation axis, while the coordinated N atom of the imidazole is located on the twofold rotation axis. One water O atom has site symmetry 2.

SUBMITTER: Nie JJ

PROVIDER: S-EPMC2969470 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature

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Hexakis(1H-imidazole-κN)cobalt(II) triaqua-tris(1H-imidazole-κN)cobalt(II) bis-(naphthalene-1,4-dicarboxyl-ate).

Nie Jing-Jing JJ Li Jun-Hua JH Xu Duan-Jun DJ

Acta crystallographica. Section E, Structure reports online 20090627 Pt 7

The asymmetric unit of the title compound, [Co(C(3)H(4)N(2))(6)][Co(C(3)H(4)N(2))(3)(H(2)O)(3)](C(12)H(6)O(4))(2), contains two halves of crystallographically independent Co(II) complex cations, each assuming a distorted octa-hedral geometry, and one uncoordinated naphthalene-1,4-dicarboxyl-ate dianion. One Co(II) cation is located on an inversion center and is coordinated by six imidazole mol-ecules, while the other Co(II) cation is located on a twofold rotation axis and is coordinated by three ...[more]

PMID: 21582743

Similar Datasets

Hexakis(1H-imidazole-?N)nickel(II) triaqua-tris(1H-imidazole-?N)nickel(II) bis-(naphthalene-1,4-dicarboxyl-ate).

Project description:The crystal structure of the title compound, [Ni(C(3)H(4)N(2))(6)][Ni(C(3)H(4)N(2))(3)(H(2)O)(3)](C(12)H(6)O(4))(2), contains uncoordinated naphthalene-dicarboxyl-ate dianions and two kinds of Ni(II) complex cations, both assuming distorted octa-hedral geometries. One Ni(II) ion is located on an inversion center and is coordinated by six imidazole mol-ecules, while the other Ni(II) ion is located on a twofold rotation axis and is coordinated by three water mol-ecules and three imidazole mol-ecules in a mer-NiN(3)O(3) arrangement. The naphthalene-dicarboxyl-ate dianion links both Ni(II) complex cations via O-H?O and N-H?O hydrogen bonding, but no ?-? stacking is observed between aromatic rings in the crystal structure. One imidazole ligand is equally disordered over two sites about a twofold rotation axis; one N atom and one water O atom have site symmetry 2.

| S-EPMC2960677 | biostudies-literature

Hexakis(1H-imidazole-κN)mangan-ese(II) triaqua-tris(1H-imidazole-κN)manganese(II) bis-(naphthalene-1,4-dicarboxyl-ate).

Project description:In the crystal structure of the title compound, [Mn(C(3)H(4)N(2))(6)][Mn(C(3)H(4)N(2))(3)(H(2)O)(3)](C(12)H(6)O(4))(2), there are uncoordinated naphthalene-dicarboxyl-ate dianions and two kinds of Mn(II) complex cations, both assuming a distorted octa-hedral geometry. One Mn(II) cation is located on an inversion center and is coordinated by six imidazole mol-ecules, while the other Mn(II) cation is located on a twofold rotation axis and is coordinated by three water mol-ecules and three imidazole units. The naphthalene-dicarboxyl-ate dianions are linked to both Mn(II) complex cations via O-H⋯O and N-H⋯O hydrogen bonding, but no π-π stacking is observed between aromatic rings in the crystal structure.

| S-EPMC2961172 | biostudies-literature

Hexakis(1H-imidazole-?N)cobalt(III) tris-(hexa-fluoridophosphate) hexa-hydrate.

Project description:In the crystal structure of the title compound, [Co(C(3)H(4)N(2))(6)](PF(6))(3)·6H(2)O, the Co(III) atom lies on a special position with site-symmetry and the P atom is located on a special position with site symmetry . The Co(III) atom has an almost ideal octa-hedral coordination formed by the N atoms of six imidazole ligands. The water mol-ecules form hydrogen-bonded helical chains propagating in [001] by O-H?O inter-actions with a distance of 2.913?(2)?Å. They simultaneously inter-act as hydrogen-bond acceptors and donors with the cations and anions, respectively, resulting in the formation of a three-dimensional assembly. Weak C-H?F inter-actions further stabilize the crystal structure.

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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.

| S-EPMC2977092 | biostudies-literature

Hexakis(1-methyl-1H-imidazole-?N)cobalt(II) dibromide dihydrate.

Project description:The asymmetric unit of the title compound, [Co(C(4)H(6)N(2))(6)]Br(2)·2H(2)O, contains one-half of the centrosymmetric cation, one Br atom and one water mol-ecule. The Co(II) atom, lying on an inversion center, has a distorted octa-hedral geometry, defined by six N atoms from six 1-methyl-imidazole ligands. In the crystal structure, intra- and inter-molecular O-H?Br hydrogen bonds link pairs of uncoordinated water mol-ecules and bromide anions.

| S-EPMC2968233 | biostudies-other

Tris(2,2'-bi-1H-imidazole-?N,N)cobalt(II) hydrogen phosphate.

Project description:The title compound, [Co(C(6)H(6)N(4))(3)]HPO(4), was synthesized under hydro-thermal conditions. In the cation, the Co(II) atom is octa-hedrally coordinated by six N atoms from three 2,2'-bi-1H-imidazole ligands [Co-N bond lengths are in the range 2.084?(5)-2.133?(6)?Å]. Inter-molecular N-H?O hydrogen bonds form an extensive hydrogen-bonding network, which links cations and anions into a three-dimensional crystal structure.

| S-EPMC3201263 | biostudies-literature

Tris(ethyl-enediamine)-nickel(II) 1H-pyrazole-3,5-dicarboxyl-ate 1.67-hydrate.

Project description:The asymmetric unit of the title compound, [Ni(C(2)H(8)N(2))(3)](C(5)H(2)N(2)O(4))·1.67H(2)O, consists of three [Ni(en)(3)](2+) dications (en is ethyl-enediamine), three [(pzdc)(3)](2-) dianions (pzdc is pyrazole-3,5-dicarboxyl-ate) and five water mol-ecules. In each complex dication, the Ni(II) atom is coordinated by six N atoms from three en ligands forming a distorted octa-hedral coordination geometry. In the crystal, the ions and water mol-ecules are linked into a three-dimensional framework by a large number of N-H?O and O-H?O hydrogen bonds.

| S-EPMC3007365 | biostudies-literature

Tetra-aqua-bis-(2-methyl-1H-imidazole-?N)cobalt(II) naphthalene-1,5-disulfonate.

Project description:In the title complex, [Co(C(4)H(6)N(2))(2)(H(2)O)(4)](C(10)H(6)O(6)S(2)), the cation and anion both reside on crystallographic inversion centers, such that the asymmetric unit comprises one half cation and one half anion. The central Co(II) ion is coordinated by four water mol-ecules and two 2-methyl-imidazole ligands, resulting in a trans-octa-hedral coordination geometry. The existence of strong N-H?O and O-H?O hydrogen-bonding inter-actions gives rise to a three-dimensional structure.

| S-EPMC3238612 | biostudies-literature

Hexakis(1H-imidazole-κN)nickel(II) bis-(3-thienylacetate).

Project description:In the title complex, [Ni(C(3)H(4)N(2))(6)](C(6)H(5)O(2)S)(2), the Ni(II) atom displays an octa-hedral coordination geometry, defined by six N atoms from the imidazole ligands. Inter-molecular N-H⋯O hydrogen-bonding inter-actions between the cationic complex and 3-thienylacetate anions form a three-dimensional network architecture. The two 3-thienylacetate anions are disordered, with occupancy ratios of circa 0.774 (1):0.226 (1) and ca 0.753 (5):0.247 (5).

| S-EPMC2961043 | biostudies-literature

catena-Poly[[[aqua-bis(1H-imidazole-κN)copper(II)]-μ-naphthalene-1,4-dicarboxyl-ato-κO: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 π-π stacking is observed in the crystal structure. One solvent water molecule is disordered equally over two positions.

| S-EPMC2961746 | biostudies-literature

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