Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

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

ABSTRACT: 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.

SUBMITTER: Safaei-Ghomi J

PROVIDER: S-EPMC3007465 | biostudies-literature | 2010 Jul

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Publications

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

Safaei-Ghomi Javad J Motieiyan Elham E Manteghi Faranak F Ghadermazi Mohammad M Aghabozorg Hossein H

Acta crystallographica. Section E, Structure reports online 20100724 Pt 8

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 ...[more]

PMID: 21588093

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

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(2,4,6-triamino-1,3,5-triazin-1-ium) hexa-aqua-cobalt(II) bis-[bis-(pyridine-2,6-dicarboxyl-ato)cobaltate(II)] tetra-hydrate.

Project description:The title compound, (C(3)H(7)N(6))(2)[Co(H(2)O)(6)][Co(C(7)H(3)NO(4))(2)](2)·4H(2)O, or (tataH)(2)[Co(H(2)O)(6)][Co(pydc)(2)](2)·4H(2)O (where tata is 2,4,6-triamino-1,3,5-triazine and pydc is pyridine-2,6-dicarboxylic acid), was obtained by reaction of Co(NO(3))(2)·6H(2)O with the proton-transfer compound (tataH)(2)(pydc) in aqueous solution. The [Co(pydc)(2)](2-) anion is a six-coordinate Co(II) complex with a distorted octa-hedral coordination geometry. The structure also contains hexa-aqua-cobalt(II) cations (site symmetry ), (tataH)(+) cations and uncoordinated water mol-ecules. The two(pydc)(2-) ligands in each [Co(pydc)(2)](2-) anion are almost perpendicular to each other [dihedral angle between their mean planes = 82.3 (1)°]. There is extensive O-H⋯O, N-H⋯N, O-H⋯N and C-H⋯O hydrogen bonding in the structure, as well as π-π stacking between (pydc)(2-) ligands with an inter-planar distance of 3.484 (15) Å.

| S-EPMC2915120 | biostudies-literature

Aqua-(4-hydroxy-pyridine-2,6-dicarboxyl-ato)(1,10-phenanothroline)copper(II) 4.5-hydrate.

Project description:The title compound, [Cu(C(7)H(3)NO(5))(C(12)H(8)N(2))(H(2)O)]·4.5H(2)O or [Cu(hypydc)(phen)(H(2)O)]·4.5H(2)O (phen is 1,10-phenanthroline and hypydcH(2) is 4-hydroxy-pyridine-2,6-dicarboxylic acid), was obtained by the reaction of copper(II) nitrate hexa-hydrate with the proton-transfer compound (phenH)(2)(hypydc) in aqueous solution. Both the cationic and the anionic fragments of the proton-transfer compound are involved in complexation. Each Cu(II) atom has a distorted octa-hedral geometry. It is hexa-coordinated by three O atoms and three N atoms, from one phen fragment (as bidentate ligand), one (hypydc)(2-) unit (as tridentate ligand) and a water mol-ecule. In the crystal structure, O-H⋯O and C-H⋯O hydrogen bonds, and π-π stacking inter-actions [centroid-to-centroid distance 3.5642 (11) Å] between the phen ring systems, contribute to the formation of a three-dimensional supra-molecular structure.

| S-EPMC2915167 | biostudies-literature

Benzene-1,3-diammonium bis-(pyridine-2,6-dicarboxyl-ato)nickelate(II) penta-hydrate.

Project description:In the title compound, (C(6)H(10)N(2))[Ni(C(7)H(3)NO(4))(2)]·5H(2)O, the Ni(II) ion is six-coordinated by two N and four O atoms from two pyridine-2,6-dicarboxyl-ate ligands in a distorted octa-hedral fashion. The crystal packing is stabilized by inter-molecular O-H⋯O and N-H⋯O and weak C-H⋯O hydrogen bonds and π-π inter-actions [centroid-centroid distances = 3.4669 (19) and 3.764 (2) Å].

| S-EPMC3051631 | biostudies-literature

Poly[di-?(2)-aqua-?(5)-(pyridine-2,6-dicarboxyl-ato)-?(3)-(pyridine-2,6-dicarboxyl-ato)-cobalt(II)disodium].

Project description:In the title compound, [CoNa(2)(C(7)H(3)NO(4))(2)(H(2)O)(2)](n), the Co(II) atom is coordinated by two pyridine N atoms and four carboxyl-ate O atoms from two doubly deprotonated pyridine-2,6-dicarboxyl-ate ligands in a distorted octa-hedral geometry. One Na(+) cation is coordinated by three carboxyl-ate O atoms and two water mol-ecules and the other is coordinated by five carboxyl-ate O atoms and two water mol-ecules in an irregular geometry. The bis-(pyridine-2,6-dicarboxyl-ato)cobalt complex units are connected by Na(+) cations and bridging water mol-ecules into a three-dimensional coordination network. O-H?O hydrogen bonds are formed between the water mol-ecules and the carboxyl-ate O atoms.

| S-EPMC3238695 | biostudies-literature

[(Pyridine-2,6-dicarboxyl-ato)copper(II)]-?-(pyridine-2,6-dicarboxyl-ato)-[bis-(ethyl-enediamine)-copper(II)]-?-(pyridine-2,6-dicarboxyl-ato)-[(pyridine-2,6-dicarboxyl-ato)copper(II)] ethyl-enediamine monosolvate tetra-hydrate.

Project description:The title compound, [Cu(3)(C(7)H(3)NO(4))(4)(C(2)H(8)N(2))(2)]·C(2)H(8)N(2)·4H(2)O, was obtained by the reaction of copper(II) acetate dihydrate with pyridine-2,6-dicarb-oxy-lic acid (H(2)dipic) and ethyl-enediamine (en) in an aqueous solution. All of the Cu(II) atoms in the trinuclear centrosymmetric title complex are six-coordinated in a distorted octa-hedral geometry with N(2)O(4) and N(4)O(2) environments for the outer and central Cu(II) atoms, respectively. 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 [O?centroid distances = 3.669?(2) and 3.668?(2)?Å] are observed in the crystal structure.

| S-EPMC3379149 | biostudies-other

?-4,4'-Bipyridine-bis-[aqua-(4-hy-droxy-pyridine-2,6-dicarboxyl-ato)copper(II)].

Project description:The title compound, [Cu(2)(C(7)H(3)NO(5))(2)(C(10)H(8)N(2))(H(2)O)(2)], exhibits a centrosymmetric binuclear molecule. Each completely deprotonated 4-hy-droxy-pyridine-2,6-dicarb-oxy-lic acid mol-ecule assumes a tridentate chelating coordination mode. The square-pyramidal coordination geometry around the Cu(II) ion is completed by the bridging bipyridine ligand and an apical water molecule. Adjacent complexes are connected via O-H?O and C-H?O hydrogen bonds to generate a three-dimensional supra-molecular structure.

| S-EPMC3297272 | 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

Bis(4,4'-bipyridinium) di-μ-hydroxido-bis-[dihydroxido(pyridine-2,6-dicarboxyl-ato)anti-monate(III,V)] octa-hydrate.

Project description:The reaction of anti-mony(III) chloride, 4,4'-bipyridine (4,4'-bipy) and pyridine-2,6-dicarboxylic acid (pydcH(2)), in a 1:2:2 molar ratio in an aqueous solution, resulted in the formation of the title centrosymmetric disordered mixed-valence Sb(III)/Sb(V) compound, (C(10)H(9)N(2))(2)[Sb(2)(C(7)H(3)NO(4))(2)(OH)(6)]·8H(2)O or (4,4'-bipyH)(2)[Sb(pydc)(OH)(2)(μ-OH)](2)·8H(2)O. The seven donor atoms of the (pydc)(2-) groups and the hydroxido ligands form a distorted penta-gonal-bipyramidal arrangement around the Sb(III)/Sb(V) centers. C-H⋯π stacking inter-actions between CH groups of the complex dianion and the aromatic rings of the (4,4'-bipyH)(+) cations, with a distance of 2.89 Å, are observed. In the crystal structure, a wide range of noncovalent inter-actions, consisting of O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds [D⋯A ranging from 2.722 (2) to 3.137 (3) Å], ion pairing, π-π stacking [centroid-centroid distance of 3.4363 (13) Å] and C-H⋯π inter-actions, connect the various components into a supra-molecular structure.

| S-EPMC2960308 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data