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Poly[[aqua-tri-?(3)-hydroxido-(?(4)-2-phos-phon-ato-ethane-sulfonato)-dierbium(III)] monohydrate].

ABSTRACT: The crystal structure of the title compound, {[Er(2)(C(2)H(4)O(6)PS)(OH)(3)(H(2)O)]·H(2)O}(n), consists of two Er(3+) ions, one (C(2)H(4)O(6)PS)(3-) ion, three OH(-) ions, and two water mol-ecule. The Er(3+) ions form ErO(8) polyhedra., which are connected by ?- and ?(3)-O atoms. Thus, inorganic Er-O-Er layers of edge- and face-sharing polyhedra are observed. Whereas most often in metal phosphono-sulfonates the organic linker bridges adjacent layers, in the title compound, the (O(3)PC(2)H(4)SO(3))(3-) anion is only connected to one Er-O-Er layer. Short interatomic O?O distances [2.898?(8), 2.997?(14) and 2.768?(10)?Å] indicate hydrogen bonding between the layers. The noncoordinated water mol-ecules are located between the layers.

SUBMITTER: Sonnauer A

PROVIDER: S-EPMC2959643 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature

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Poly[[aqua-tri-μ(3)-hydroxido-(μ(4)-2-phos-phon-ato-ethane-sulfonato)-dierbium(III)] monohydrate].

Sonnauer Andreas A Stock Norbert N

Acta crystallographica. Section E, Structure reports online 20081018 Pt 11

The crystal structure of the title compound, {[Er(2)(C(2)H(4)O(6)PS)(OH)(3)(H(2)O)]·H(2)O}(n), consists of two Er(3+) ions, one (C(2)H(4)O(6)PS)(3-) ion, three OH(-) ions, and two water mol-ecule. The Er(3+) ions form ErO(8) polyhedra., which are connected by μ- and μ(3)-O atoms. Thus, inorganic Er-O-Er layers of edge- and face-sharing polyhedra are observed. Whereas most often in metal phosphono-sulfonates the organic linker bridges adjacent layers, in the title compound, the (O(3)PC(2)H(4)SO(3 ...[more]

PMID: 21580876

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Poly[[diaqua-?(2)-hydroxido-(?(7)-2-phos-pho-nato-ethane-sulfonato)-dicopper(II)] trihydrate].

Project description:The crystal structure of the title compound, [Cu(2)(C(2)H(4)O(6)PS)(OH)(H(2)O)(2)]·3H(2)O, consists of two Cu(2+) ions, one (O(3)PC(2)H(4)SO(3))(3-) ion and one OH(-) ion, as well as five water mol-ecules, two of which are coordinated to Cu(2+). The Cu(2+) ions are coordinated by six O atoms. The CuO(6) polyhedra are connected by ?- and ?(3)-O atoms into zigzag chains along the b axis. These chains are further connected by -CH(2)CH(2)- groups to form layers, in turn building a three-dimensional framework via hydrogen bonding.

| S-EPMC2959580 | biostudies-literature

Poly[[tri-?(3)-hydroxido-tris-(?(4)-pyridine-2,5-dicarboxyl-ato)trineodymium(III)] monohydrate].

Project description:In the title compound, {[Nd(3)(C(7)H(3)NO(4))(3)(OH)(3)]·H(2)O}(n), the Nd(III) atom is eight-coordinated by the three O atoms of three asymmetrically ?(3)-bridging hydroxide groups, by four carboxyl-ate O atoms of four different pyridine-2,5-dicarboxyl-ate (2,5-pydc) ligands, and by the N atom of a 2,5-pydc ligand. Six Nd atoms are connected by six hydroxide groups, forming an [Nd(6)(?(3)-OH)(6)] cluster unit of symmetry -3 and a slightly compressed octa-hedral geometry. Adjacent [Nd(6)(?(3)-OH)(6)] clusters are connected by the 2,5-pydc ligands, via O and N atoms, forming chains along the c axis. The remaining O atoms of the 2,5-pydc ligands link these chains into a three-dimensional framework. A disordered water molecule, located on a threefold rotation axis at the opposite side of the [Nd(6)(?(3)-OH)(6)] cluster and exposed to each of the three Nd atoms, completes the structure.

| S-EPMC3344300 | biostudies-literature

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catena-Poly[[cobalt(II)-?-aqua-?-propano-ato-?O:O'-?-propano-ato-?O:O] monohydrate].

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Poly[[penta-aqua-(?(4)-pyridine-2,4,6-tri-carboxyl-ato)(?(3)-pyridine-2,4,6-tri-carboxyl-ato)disamarium(III)] mono-hydrate].

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Project description:The asymmetric unit of the title compound, {[Co(3)(C(8)H(4)O(4))(3)(H(2)O)]·CH(3)OH·H(2)O}(n), consists of four crystallographically independent Co cations, four benzene-1,4-dicarboxyl-ate (bdc) anions, two water and one methanol solvent mol-ecule. Two of the Co cations and two of the bdc anions are located on centres of inversion, whereas all other atoms are located in general positions. In the crystal, two Co atoms are only fourfold coordinated by three O atoms from three bdc ligands and by one O atom from one coordinated water mol-ecule, while a third Co atom is coordinated by four O atoms from four bdc ligands within a strongly distorted tetra-hedral geometry. The other two Co cations are octa-hedrally coordinated by six O atoms from six bdc anions. The Co cations are linked by the bdc anions into a three-dimensional framework. From this arrangement, cavities are formed in which additional methanol and water mol-ecules are embedded.

| S-EPMC3152069 | biostudies-literature

Poly[[aqua-?(6)-benzene-1,2,3-tricarboxyl-ato-?(3)-hydroxido-dizinc] hemihydrate].

Project description:In the title compound, {[Zn(2)(C(9)H(3)O(6))(OH)(H(2)O)]·0.5H(2)O}(n), there are three independent Zn(II) atoms present; two are located on special positions, viz a twofold rotation axis and an inversion centre, and the third is located in a general position. The Zn(II) atom on the inversion centre is six-coordinated by four O atoms from four different benzene-1,2,3-tricarboxyl-ate anions and two OH(-) anions. The Zn(II) atom located on a twofold axis is four coordinated by two O atoms from two different benzene-1,2,3-tricarboxyl-ate anions and two OH(-) anions. The third Zn(II) atom, located in a general position, is five coordinated by three O atoms from three different benzene-1,2,3-tricarboxyl-ate anions, one OH(-) anion and one water mol-ecule. Each benzene-1,2,3-tricarboxyl-ate anion bridges six Zn(II) atoms, and the OH(-) anion bridges three Zn(II) atoms, resulting in the formation of a three-dimensional framework. A series of O-H?O hydrogen bonds involving the benzene-1,2,3-tricarboxyl-ate anions, the OH(-) anion and the coordinating and the two water solvent mol-ecules further stablize the crystal structure. The two solvent water molecules show occupancies of 0.5 and 0.25.

| S-EPMC3274850 | biostudies-other

Poly[[triaqua-(μ(3)-pyridine-2,4,6-tri-car-boxyl-ato)gadolinium(III)] monohydrate].

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| S-EPMC2970953 | biostudies-literature

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