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Catena-Poly[[[bis-[aqua-nickel(II)]bis-(?-pyridine-2,6-dicarboxyl-ato N-oxide)]-?-1,2-di-4-pyridylethane] tetra-hydrate].

ABSTRACT: In the title compound, {[Ni(2)(C(7)H(3)NO(5))(2)(C(12)H(12)N(2))(H(2)O)(2)]·4H(2)O}(n), two Ni(II) ions, two tridentate pyridine-2,6-dicarboxyl-ate N-oxide ligands and two coordinated water mol-ecules form centrosymmetric dinuclear units, which are further bridged by centrosymmetric 1,2-di-4-pyridylethane ligands into polymeric chains along [210]. Each Ni(II) ion has a distorted square-pyramidal environment, with the basal plane formed by three O [Ni-O = 1.9290?(16)-1.9588?(10)?Å] and one N [Ni-N = 1.9828?(18)?Å] atoms and the apical position occupied by the water mol-ecule [Ni-O = 2.2643?(11)?Å]. The water mol-ecules are involved in the formation of O-H?O hydrogen bonds.

SUBMITTER: Yang MH

PROVIDER: S-EPMC2959744 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature

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catena-Poly[[[bis-[aqua-nickel(II)]bis-(μ-pyridine-2,6-dicarboxyl-ato N-oxide)]-μ-1,2-di-4-pyridylethane] tetra-hydrate].

Yang Ming-Hua MH

Acta crystallographica. Section E, Structure reports online 20081004 Pt 11

In the title compound, {[Ni(2)(C(7)H(3)NO(5))(2)(C(12)H(12)N(2))(H(2)O)(2)]·4H(2)O}(n), two Ni(II) ions, two tridentate pyridine-2,6-dicarboxyl-ate N-oxide ligands and two coordinated water mol-ecules form centrosymmetric dinuclear units, which are further bridged by centrosymmetric 1,2-di-4-pyridylethane ligands into polymeric chains along [210]. Each Ni(II) ion has a distorted square-pyramidal environment, with the basal plane formed by three O [Ni-O = 1.9290 (16)-1.9588 (10) Å] and one N [Ni- ...[more]

PMID: 21580819

Similar Datasets

Tetra-μ-aqua-octaaqua-bis(μ-4-chloro-pyridine-2,6-dicarboxyl-ato)bis-(4-chloro-pyridine-2,6-dicarboxyl-ato)tri-cobalt(II)disodium(I) bis-[triaqua-bis(4-chloro-pyridine-2,6-dicarboxyl-ato)cobalt(II)] hexa-hydrate.

Project description:The title compound, [Co(3)Na(2)(C(7)H(2)ClNO(4))(4)(H(2)O)(12)][Co(C(7)H(2)ClNO(4))(H(2)O)(3)](2)·6H(2)O, consists of a centrosymmetric dimer of [Co(II)(dipicCl)(2)](2-) complex dianions [dipicCl is 4-chloro-pyridine-2,6-dicarboxyl-ate] bridged by an [Na(2)Co(II)(H(2)O)(12)](4+) tetra-cationic cluster, two independent [Co(dipicCl)(H(2)O)(3)] complexes, and six water mol-ecules of crystallization. The metals are all six-coordinate with distorted octahedral geometries. The [Co(II)(dipicCl)(H(2)O)(3)] complexes are neutral, with one tridentate ligand and three water molecules. The [Co(II)(dipicCl)(2)](2-) complexes each have two tridentate ligands. The [Na(2)Co(II)(H(2)O)(12)](4+) cluster has a central Co(II) ion which is coordinated to six water molecules and lies on a crystallographic inversion center. Four of the water molecules bridge to two sodium ions, each of which have three other water molecules coordinated along with an O atom from the [Co(II)(dipicCl)(2)](2-) complex. In the crystal structure, the various units are linked by O-H⋯O hydrogen bonds, forming a three-dimensional network. Two water molecules are disordered equally over two positions.

| S-EPMC2915174 | biostudies-literature

Hexaaqua-nickel(II) tetra-aqua-bis-(?-pyridine-2,6-dicarboxyl-ato)bis-(pyridine-2,6-dicarboxyl-ato)trinickelate(II) octa-hydrate.

Project description:The title compound, [Ni(H(2)O)(6)][Ni(3)(C(7)H(3)NO(4))(4)(H(2)O)(4)]·8H(2)O, was obtained by the reaction of nickel(II) nitrate hexa-hydrate with pyridine-2,6-dicarb-oxy-lic acid (pydcH(2)) and 1,10-phenanothroline (phen) in an aqueous solution. The latter ligand is not involved in formation of the title complex. There are three different Ni(II) atoms in the asymmetric unit, two of which are located on inversion centers, and thus the [Ni(H(2)O)(6)](2+) cation and the trinuclear {[Ni(pydc)(2)](2)-?-Ni(H(2)O)(4)}(2-) anion are centrosymmetric. All Ni(II) atoms exhibit an octa-hedral coordination geometry. Various inter-actions, including numerous O-H?O and C-H?O hydrogen bonds and C-O?? stacking of the pyridine and carboxyl-ate groups [3.570?(1), 3.758?(1) and 3.609?(1)?Å], are observed in the crystal structure.

| S-EPMC3007465 | biostudies-literature

Poly[[tetra-aqua-bis-(μ(3)-pyridine-2,6-dicarboxyl-ato)(μ(2)-pyridine-2,6-dicarboxyl-ato)dilanthanum(III)] dihydrate].

Project description:There are two independent La(III) cations in the polymeric title compound, {[La(2)(C(7)H(3)NO(4))(3)(H(2)O)(4)]·2H(2)O}(n). One is nine-coordinated in an LaN(2)O(7) tricapped trigonal-prismatic geometry formed by three pyridine-2,6-dicarboxyl-ate anions and two water mol-ecules, while the other is ten-coordinated in an LaNO(9) bicapped square-anti-prismatic geometry formed by four pyridine-2,6-dicarboxyl-ate anions and two water mol-ecules. The two La(III) cations are separated by a non-bonding distance of 5.026 (3) Å. The pyridine-2,6-dicarboxyl-ate anions bridge the La(III) cations, forming a three-dimensional polymeric complex. The crystal structure contains extensive classical O-H⋯O hydrogen bonds and weak inter-molecular C-H⋯O hydrogen bonds. The crystal structure is further consolidated by π-π stacking between pyridine rings, the shortest centroid-centroid distance between parallel pyridine rings being 3.700 (5) Å.

| S-EPMC3200968 | biostudies-literature

catena-Poly[4,4'-bipyridinium [[tetra-aqua-(pyridine-2,6-dicarboxyl-ato-κO,N,O)cerate(III)]-μ-pyridine-2,6-dicarboxyl-ato-κO:O,N,O-[(pyridine-2,6-dicarboxyl-ato-κO,N,O)cerate(III)]-μ-pyridine-2,6-dicarboxyl-ato-κO,N,O:O] penta-hydrate].

Project description:The title compound, {(C(10)H(10)N(2))[Ce(2)(C(7)H(3)NO(4))(4)(H(2)O)(4)]·5H(2)O}(n), is composed of a one-dimensional anionic complex, a doubly protonated 4,4'-bipyridine mol-ecule as a counter-ion and five uncoordinated water mol-ecules. The anion bears two nine-coordinate Ce(III) ions, each with a distorted tricapped trigonal-prismatic geometry. In the crystal, inter-molecular C-H⋯O, N-H⋯O and O-H⋯O hydrogen bonds, as well as π-π inter-actions with centroid-centroid distances of 3.514 (3) Å connect the various components into a supra-molecular structure.

| S-EPMC3051934 | biostudies-literature

catena-Poly[[[diaqua-iron(II)]-μ-pyridine-2,5-dicarboxyl-ato-[tetra-aqua-iron(II)]-μ-pyridine-2,5-dicarboxyl-ato] tetra-hydrate].

Project description:In the crystal structure of the title compound, {[Fe(2)(C(7)H(3)NO(4))(2)(H(2)O)(6)]·4H(2)O}(n), there are two types of coordination for the Fe(II) atoms. One Fe(II) atom is in a distorted octa-hedral N(2)O(4) environment, with two chelating rings from the pyridine-dicarboxyl-ate ligands and two O atoms from the water mol-ecules, while the other is in a distorted octa-hedral O(6) environment with two O atoms from the pyridine-dicarboxyl-ate ligands and four O atoms from the water mol-ecules. Both Fe(II) atoms lie on crystallographic centers of symmetry. The complex possesses an infinite chain structure running along the [101] direction. These chains are inter-connected by the uncoordinated water mol-ecules through O-H⋯O hydrogen bonds.

| S-EPMC2960407 | biostudies-literature

Poly[piperazinediium [[aqua-bismuth-ate(III)]-di-μ-pyridine-2,6-dicarboxyl-ato-bis-muthate(III)-di-μ-pyridine-2,6-dicarboxyl-ato] monohydrate].

Project description:The title compound, {(C(4)H(12)N(2))[Bi(2)(C(7)H(3)NO(4))(4)(H(2)O)]·H(2)O}(n) or {(pipzH(2))[Bi(2)(pydc)(4)(H(2)O)]·H(2)O}(n), where pydcH(2) is pyridine-2,6-dicarboxylic acid and pipz is piperazine, was obtained by reaction of Bi(NO(3))(3)·5H(2)O with (pipzH(2))(pydc-H)(2)·3H(2)O in a 1:2 molar ratio in aqueous solution. There are two independent Bi(III) atoms in the structure, one of which is eight-coordinate with a distorted bicapped trigonal-prismatic geometry, and another which is nine-coordinate with a distorted tricapped trigonal-prismatic geometry. The carboxyl-ate groups of the (pydc)(2-) ligands link dinuclear [Bi(2)(C(7)H(3)NO(4))(4)(H(2)O)](2-) units into one-dimensional coordin-ation polymers. The pipzH(2) (2+) cations (site symmetry ) and non-coordinated water mol-ecules lie between these polymers, forming N-H⋯O and O-H⋯O hydrogen bonds to the O atoms of the carboxylate groups.

| S-EPMC2960170 | biostudies-literature

Poly[[dodeca-aqua-bis-(?(3)-pyridine-2,6-dicarboxyl-ato)tetra-kis-(?(2)-pyridine-2,6-dicarboxyl-ato)tri-calciumdieuropium(III)] 10.5-hydrate].

Project description:In the title compound, {[Ca(3)Eu(2)(C(7)H(3)NO(4))(6)(H(2)O)(12)]·10.5H(2)O}(n), the Eu(III) ion is nine-coordinated by three tridentate pyridine-2,6-dicarboxyl-ate (PDA) ligands, forming a [Eu(PDA)(3)](3-) building block. The Ca(2+) ions adopt two types of coordination geometries. One Ca(2+) ion, lying on a twofold rotation axis, is eight-coordinated by four carboxyl-ate O atoms from four PDA ligands and four water mol-ecules, and the other two Ca(2+) ions, each lying on an inversion center, are six-coordinated by two carboxyl-ate O atoms from two PDA ligands and four water mol-ecules. The carboxyl-ate groups bridge the Eu(III) and Ca(2+) ions into a three-dimensional porous framework, with channels extending along [010] and [001] in which lattice water mol-ecules are located. Two of the lattice water mol-ecules are disordered over two sets of sites with equal occupancy and one water mol-ecule is 0.25-occupied. Numerous O-H?O hydrogen bonds involving the water mol-ecules and carboxyl-ate O atoms are present.

| S-EPMC3344405 | biostudies-literature

Bis(2,3-diamino-pyridinium) bis-(μ-pyridine-2,6-dicarboxyl-ato)-κO,N,O:O;κO:O,N,O-bis-[aqua-(pyridine-2,6-dicarboxyl-ato-κO,N,O)bis-muthate(III)] tetra-hydrate.

Project description:In the centrosymmetric dinuclear complex anion of the title compound, (C(5)H(8)N(3))(2)[Bi(2)(C(7)H(3)NO(4))(4)(H(2)O)(2)]·4H(2)O, the Bi(III) atom is eight-coordinated in an N(2)O(6) environment and has a distorted bicapped trigonal-prismatic coordination environment. Extensive inter-molecular O-H⋯O, N-H⋯O and weak C-H⋯O hydrogen bonds lead to the stability of the crystal structure. Inter-actions between one C-H group of the 2,3-diamino-pyridinium [(2,3-dapyH)(+)] cation and the aromatic ring of the pyridine-2,6-dicarboxyl-ate (pydc) ligand (C-H⋯centroid distance = 2.78 Å) and π-π inter-actions between the (2,3-dapyH)(+) cations and between the (2,3-dapyH)(+) cation and the pydc ligand [centroid-centroid distances = 3.489 (5) and 3.694 (5) Å] are observed.

| S-EPMC3052092 | biostudies-literature

Bis-(μ-pyridine-2,3-dicarboxyl-ato)bis-[aqua-(3-carb-oxy-pyridine-2-carboxyl-ato)indium(III)] tetra-hydrate.

Project description:In the binuclear centrosymmetric title compound, [In(2)(C(7)H(3)NO(4))(2)(C(7)H(4)NO(4))(2)(H(2)O)(2)]·4H(2)O, which contains both pyridine-2,3-dicarboxyl-ate and 3-carb-oxy-pyridine-2-carboxyl-ate ligands, the In(III) atom is six-coordinated in a distorted octa-hedral geometry. One pyridine ligand is N,O-chelated while the other is N,O-chelated and at the same time bridging to the other via the second carboxyl group. In the crystal, an extensive O-H⋯O hydrogen-bonding network, involving the coordinated and lattice water mol-ecules and the carboxyl groups of the ligands, together with C-H⋯O and π-π inter-actions [centroid-centroid distance = 3.793 (1) Å], leads to the formation of a three-dimensional structure.

| S-EPMC3254334 | biostudies-literature

Poly[hexa-aqua-bis(μ(3)-naphthalene-2,6-dicarboxyl-ato)(μ(2)-naphthalene-2,6-dicarboxyl-ato)diholmium(III)].

Project description:The crystal structure of the title compound, [Ho(2)(C(12)H(6)O(4))(3)(H(2)O)(6)](n), contains binuclear centrosymmetric {Ho(2)O(2)(CO(2))(4)(H(2)O)(6)} cores inter-connected via the naphthalene-2,6-dicarboxyl-ate (NDC(2-)) bridging ligands into a two-dimensional neutral plane net, ∞(2)[Ho(2)(NDC)(3)(H(2)O)(6)], exhibiting a typical (4,4)-topology. Inter-actions between adjacent layers are assured by a series of C-H⋯π contacts and a number of strong and highly directional O-H⋯O hydrogen bonds involving the coordinated water mol-ecules and neighbouring coordinated carboxyl-ate groups. One NDC(2-) bridging ligand has its centroid located at a crystallographic centre of inversion.

| S-EPMC2915085 | biostudies-literature

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