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(μ-Ethane-1,1,2,2-tetra-carboxyl-ato)bis-[tetra-aqua-manganese(II)].

ABSTRACT: In the centrosymmetric title molecule, [Mn(2)(C(6)H(2)O(8))(H(2)O)(8)], the Mn(II) atom is in an octa-hedral environment coordinated by six O-atom donors from water mol-ecules and ethane-1,1,2,2-tetra-carboxyl-ate ligands. The crystal structure features a three-dimensional hydrogen-bonding network based on a strong and distinctive pattern of O-H⋯O hydrogen-bonding inter-actions.

SUBMITTER: Xue MW

PROVIDER: S-EPMC3099957 | biostudies-literature |

REPOSITORIES: biostudies-literature

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catena-Poly[[tetra-aqua-μ-aqua-bis-(μ(4)-pyrimidine-2-carboxyl-ato)tetra-lithium] dichloride].

Project description:The asymmetric unit of the title compound, [Li(4)(C(5)H(3)N(2)O(2))(2)(H(2)O)(5)]Cl(2), contains two Li(I) cations, one with a distorted trigonal-bipyramidal and the other with a distorted tetra-hedral coordination geometry. Two symmetry-related asymmetric units constitute a building block of the structure, in which both ligand carboxyl-ate O atoms are bidentate and bridge the metal ions, forming a divalent cation. Charge balance is maintained by two chloride anions. The building blocks, bridged by Li(I) cations, form cationic ribbons with chloride anions in the space between them. The ribbons propagate in [010] and are held together by a network of weak O-H⋯O hydrogen bonds which operate in the space between adjacent ribbons.

| S-EPMC3515122 | biostudies-literature

Octa-aqua-bis(μ(2)-1H-pyrazole-3,5-di-carboxyl-ato)tricopper(II) tetra-hydrate.

Project description:In the trinucler Cu(II) complex mol-ecule of the title compound, [Cu(3)(C(5)HN(2)O(4))(2)(H(2)O)(8)]·4H(2)O, the central Cu(II) atom is located on an inversion centre and is coordinated in a distorted octa-hedral geometry. The equatorial sites are occupied by two N and two O atoms from two pyrazole-3,5-dicarboxyl-ate ligands and the axial positions are occupied by two water mol-ecules. The two other symmetry-related Cu(II) atoms are penta-coordinated and assume a square-pyramidal geometry. In the crystal structure, coordinated and uncoordinated water mol-ecules and carboxyl-ate O atoms are linked by O-H⋯O hydrogen bonds.

| S-EPMC2979837 | biostudies-literature

Bis(μ-carboxyl-atoethyl-phospho-nato)bis-[aqua-(2,2'-bipyridine)manganese(II)].

Project description:The title compound, [Mn(2)(HO(3)PCH(2)CH(2)COO)(2)(C(8)H(8)N(2))(2)(H(2)O)(2)], was obtained by hydro-thermal synthesis. The manganese(II) ions are six-coordinate and are linked by two 2-carboxy-ethyl-phospho-nate ligands, forming a centrosymmetric dimer. The Mn ions adopts a distorted octahedral coordination geometry. The dimers are further linked by O-H⋯O hydrogen bonds and π-π stacking inter-actions [centroid-centroid distance 4.2754 (4) Å].

| S-EPMC2915102 | biostudies-literature

Poly[[hexa-μ-aqua-diaqua-bis-(μ₄-dihydrogen benzene-1,2,4,5-tetra-carboxyl-ato)magnesiumdisodium] dihydrate].

Project description:The asymmetric unit of the title compound, {[MgNa₂(C₁₀H₄O₈)₂(H₂O)₈]·2H₂O}(n), contains one octa-hedrally coordin-ated Mg(II) atom (site symmetry 2/m), one octahedrally coordinated Na(I) atom (site symmetry 2) and one half of the dihydrogen benzene-1,2,4,5-tetra-carboxyl-ate (btec) ligand, the second half of the ligand being generated by a twofold rotation axis. The basic framework of the title compound features infinite (-Na-Na-Mg-)(n) chains along [10-1] with the metal cations bridged by the coordinating water molecules. The chains are isolated from each other by μ₄-bridging btec ligands, which form inter-molecular O-H⋯O hydrogen bonds to uncoordinated water mol-ecules and the coordinated water mol-ecules of a neighbouring chain. In each btec ligand, there are also intramolecular O-H⋯O hydrogen bonds.

| S-EPMC3393174 | biostudies-literature

Poly[octa-μ-aqua-tetra-aqua-bis(μ(4)-5-sulfonatobenzene-1,3-dicarboxyl-ato)nickel(II)tetra-sodium].

Project description:In the crystal structure of the title compound, [Na(4)Ni(C(8)H(3)O(7)S)(2)(H(2)O)(12)](n), the Ni(II) cation occupies an inversion centre and is coordinated by the carboxyl groups of the sulfoisophthalate trianions and water mol-ecules in a distorted octa-hedral geometry. Two independent Na(I) atoms are connected by the carboxyl and sulfonate groups of the sulfoisophthalate ligands anions and water mol-ecules in a distorted octa-hedral geometry. The sulfoisophthalate ligands and coordinated water mol-ecules bridge the Ni(II) and Na(I) cations, forming a three-dimensional polymeric structure. Weak π-π stacking is present between parallel benzene rings [centroid-centroid distance = 3.9349 (10) Å]. Extensive O-H⋯O and C-H⋯O hydrogen bonding helps to stabilize the crystal structure.

| S-EPMC2969070 | biostudies-literature

Poly[octa-μ-aqua-tetra-aqua-bis(μ-5-sul-fon-atobenzene-1,3-dicarboxyl-ato)cobalt(II)tetra-sodium].

Project description:The title compound, [CoNa(4)(C(8)H(3)O(7)S)(2)(H(2)O)(12)](n), is a three-dimensional coordination polymer bridged by sulfoisophthalate trianions and water mol-ecules. The Co(II) atom, located on an inversion centre, is coordinated by two carboxyl-ate groups of the sulfoisophthalate trianions and by four water mol-ecules in a distorted CoO(6) octa-hedral geometry. Two independent Na(I) atoms also have a distorted octa-hedral coordination geometry formed by water, carboxyl-ate O and sulfonate O atoms. An extensive O-H⋯O and C-H⋯O hydrogen-bonding network is present in the crystal structure, as well as weak π-π stacking [centroid-centroid distance = 3.9553 (11) Å].

| S-EPMC2968916 | biostudies-literature

Tetra-aqua-bis-(6-chloro-pyridine-3-carboxyl-ato-κO)nickel(II) tetra-hydrate.

Project description:In the title compound, [Ni(C(6)H(3)ClNO(2))(2)(H(2)O)(4)]·4H(2)O, the Ni(II) ion is located on an inversion centre and is octa-hedrally coordinated by four O atoms from four water mol-ecules in the equatorial plane and two O atoms of two 6-chloro-3-carboxyl-ate ligands in axial positions. There are also four lattice water molecules present. The organic ligands are bound to the Ni(II) ion in a monodentate manner through a carboxyl-ate O atom. There is one strong intra-molecular O-H⋯O hydrogen bond and six inter-molecular O-H⋯O and O-H⋯N hydrogen-bonding inter-actions in the packing, resulting in a complex three-dimensional network structure.

| S-EPMC3515138 | biostudies-literature

Tetra-aqua-bis-(6-chloro-pyridine-3-carboxyl-ato-κO)cobalt(II) tetra-hydrate.

Project description:In the title compound, [Co(C(6)H(3)ClNO(2))(2)(H(2)O)(4)]·4H(2)O, the Co(II) cation is located on an inversion center and is coordinated by four water mol-ecules and two 6-chloro-pyridine-3-carboxyl-ate anions in a slightly distorted octa-hedral geometry. In the crystal, complex mol-ecules and lattice water mol-ecules are linked by O-H⋯O and O-H⋯N hydrogen bonds into a three-dimensional network.

| S-EPMC3515139 | 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

catena-Poly[[tetra-aqua-manganese(II)]-?-5-carboxyl-ato-1-carboxyl-atomethyl-2-oxidopyridinium-?O:O].

Project description:In the title coordination polymer, [Mn(C(8)H(5)NO(5))(H(2)O)(4)](n), the Mn(II) atom is coordinated by two carboxyl-ate O atoms from two 5-carboxyl-ato-1-carboxyl-atomethyl-2-oxidopyridinium (L(2-)) ligands and by four water mol-ecules in a distorted octa-hedral geometry. The L(2-) ligands bridge the Mn atoms into an infinite chain motif along [100]; the chains are further inter-linked by O-H?O hydrogen bonds into a three-dimensional supra-molecular net.

| S-EPMC3212127 | biostudies-literature

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