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Tetra-aqua-(2-hy-droxy-acetato-κO,O)magnesium nitrate.

ABSTRACT: In the title complex, [Mg(C(2)H(3)O(3))(H(2)O)(4)]NO(3), the Mg(II) cation is hexa-coordinated by four O atoms from water mol-ecules and two O atoms from a 2-hy-droxy-acetate ligand in a distorted octa-hedral coordination geometry. The structure exhibits a three-dimensional supra-molecular network, which is stabilized by nine different O-H⋯O hydrogen bonds.

SUBMITTER: Liu WJ

PROVIDER: S-EPMC3052091 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Tetra-kis[μ-2-(4-hy-droxy-phenyl)-acetato]-κO,O':O;κO:O,O'-bis-{aqua-(4,4'-bi-pyridine-κN)bis-[2-(4-hy-droxy-phenyl)-acetato-κO,O]neodymium(III)} monohydrate.

Project description:The title complex, [Nd(2)(C(8)H(7)O(3))(6)(C(10)H(8)N(2))(2)(H(2)O)(2)]·H(2)O, contains two Nd atoms, six 4-hy-droxy-phenyl-acetate (hpaa) anions, two 4,4'-bipyridine mol-ecules (bipy) and two water mol-ecules; an additional water mol-ecule of solvation is also present in the crystal structure. Each of the Nd(III) ions is nine-coordinated by seven O atoms from four hpaa ligands, an N atom from a bipy ligand and an O atom from a water mol-ecule in a distorted tricapped trigonal-prismatic geometry. The hpaa ligands are coordinated to the Nd(III) ions in the bridging and bridging tridentate modes. Extensive O-H⋯O, O-H⋯N and C-H⋯O hydrogen bonding stabilizes the crystal structure.

| S-EPMC3009128 | biostudies-literature

Bis[μ-2-(4-hy-droxy-phen-yl)acetato]-κO,O':O;κO:O,O'-bis-{aqua-(4,4'-bipyridine-κN)[2-(4-hy-droxy-phen-yl)acetato-κO,O']samarium(III)} monohydrate.

Project description:The dinuclear title complex, [Sm(2)(C(8)H(7)O(3))(6)(C(10)H(8)N(2))(2)(H(2)O)(2)]·H(2)O, contains two Sm(III) atoms, six deprotonated p-hy-droxy-phenyl-acetic acid (PAA) mol-ecules, two 4,4'-bipyridine (bipy) mol-ecules, two coordinated water mol-ecules and one solvent water molecule. Each Sm(III)ion is nine-coordinated by seven O atoms from four PAA ligands, one water O atom and one N atom from a bipy ligand in a distorted geometry. The PAA ligands are coordinated to the Sm(III) ion in bridging and bridging tridentate modes. The asymmetric unit also contains one uncoordinated water mol-ecule. The occurrence of numerous O-H⋯O and O-H⋯N hydrogen bonds involving coordinated and non-coordinated water mol-ecules builds up an intricate three-dimensional network.

| S-EPMC3011563 | biostudies-literature

(2-Hy-droxy-acetato-κO)bis-(1,10-phenan-throline-κN,N')copper(II) nitrate.

Project description:In the title compound, [Cu(C(2)H(3)O(3))(C(12)H(8)N(2))(2)]NO(3), the Cu(II) atom is coordinated by two phenanthroline (phen) ligands and one carboxyl-O atom of a hy-droxy-acetate anion in a distorted square-pyramidal geometry. The hy-droxy group of the hy-droxy-acetate ligand links with the counter NO(3) (-) anion via a pair of bifurcated O-H⋯O hydrogen bonds. The centroid-centroid distance of 3.5676 (14) Å between benzene rings of parallel phen ligands of adjacent mol-ecules suggests the existence of π-π stacking. Weak inter-molecular C-H⋯O hydrogen bonding is also present in the crystal structure.

| S-EPMC3089357 | biostudies-literature

Bis[μ-2-(4-hy-droxy-phen-yl)acetato]-κO,O':O;κO:O,O'-bis-{aqua-(4,4'-bi-pyridine-κN)[2-(4-hy-droxy-phen-yl)acetato-κO,O']erbium(III)} monohydrate.

Project description:The title dinuclear complex, [Er(2)(C(8)H(7)O(3))(6)(C(10)H(8)N(2))(2)(H(2)O)(2)]·H(2)O, contains two Er(III) atoms in the asymmetric unit, six 2-(4-hy-droxy-phen-yl)acetate (PAA) anions, two 4,4'-bipyridine (bipy) mol-ecules, two coordinated water mol-ecules and one solvent water mol-ecule. The central Er(III) atoms are nine-coordinated. The coordination environment includes six O atoms from three PAA anions, one bridging O atom from a PAA anion, one O atom from a water mol-ecule and an N atom from a bipy ligand in a distorted tricapped trigonal-prismatic geometry. The occurrence of numerous O-H⋯O and O-H⋯N hydrogen bonds involving coordinated and noncoordinated water as well as bipy groups builds up an intricate three-dimensional network.

| S-EPMC3011679 | biostudies-literature

Bis[μ-2-(4-hy-droxy-phen-yl)acetato]-κO,O':O;κO:O,O'-bis-{aqua-(4,4'-bipyridine-κN)bis-[2-(4-hy-droxy-phen-yl)acetato-κO,O']ytterbium(III)} monohydrate.

Project description:In the title dinuclear complex, [Yb(2)(C(8)H(7)O(3))(6)(C(10)H(8)N(2))(2)(H(2)O)(2)]·H(2)O, the Yb(III) atoms are coordinated by eight O atoms from four 2-(4-hy-droxy-phen-yl)acetate (HPAA) ligands and a water mol-ecule, and one N atom from a 4,4'-bipyridine (bipy) ligand in a distorted tricapped trigonal-prismatic geometry. Whereas four HPAA ligands coordinate to just two Yb(III) atoms, the remaining two ligands bridge the two Yb(III) atoms. In the crystal structure, O-H⋯O and O-H⋯N hydrogen bonds link the mol-ecules into a three-dimensional network.

| S-EPMC3009163 | biostudies-literature

[μ-2-(4-Hy-droxy-phen-yl)acetato]-κO:O,O';κO,O':O'-bis-{aqua-(4,4'-bi-pyridine-κN)bis-[2-(4-hy-droxy-phen-yl)acetato-κO,O']holmium(III)} mono-hydrate.

Project description:In the title dinuclear complex, [Ho(2)(C(8)H(7)O(3))(6)(C(10)H(8)N(2))(2)(H(2)O)(2)]·H(2)O, each of the two independent Ho(III) ions is coordinated by eight O atoms from four 4-hy-droxy-phenyl-acetate (HPAA) ligands and a water mol-ecule, and one N atom from a 4,4'-bipyridine (bipy) ligand in a distorted tricapped trigonal-prismatic geometry. The HPAA ligands are coordinated in bis-chelate, bridging and bridging tridentate modes. In the crystal, O-H⋯O and O-H⋯N hydrogen bonds link the mol-ecules into a three-dimensional network.

| S-EPMC3051499 | biostudies-literature

Bis[μ-2-(4-hy-droxy-phen-yl)acetato]-κO,O':O;κO:O,O'-bis-{aqua-(4,4'-bipyridine-κN)bis-[2-(4-hy-droxy-phen-yl)acetato-κO,O']thulium(III)} mono-hydrate.

Project description:In the title dinuclear complex, [Tm(2)(C(8)H(7)O(3))(6)(C(10)H(8)N(2))(2)(H(2)O)(2)]·H(2)O, the Tm(III) atoms are coordinated by eight O atoms from four 2-(4-hy-droxy-phen-yl)acetate (HPAA) ligands and a water mol-ecule, and one N atom from a 4,4'-bipyridine ligand in a distorted tricapped trigonal-prismatic geometry. While four of the HPAA ligands coordinate to just one Tm atom, the remaining two HPAA ligands bridge the two Tm atoms. In the crystal, O-H⋯O and O-H⋯N hydrogen bonds link the mol-ecules into a three-dimensional network.

| S-EPMC3009223 | biostudies-literature

Tetra-aqua-bis-(3,5-dinitro-benzoato-κO (1))magnesium tetra-hydrate.

Project description:In the structure of the title compound, [Mg(C7H3N2O6)2(H2O)4]·4H2O, the slightly distorted octa-hedral MgO6 coord-in-ation polyhedron comprises two trans-related carboxyl-ate O-atom donors from mononodentate 3,5-dinitro-benzoate ligands, and four water mol-ecules. The coordinating water mol-ecules and the four water mol-ecules of solvation give both intra- and inter-unit O-H⋯O hydrogen-bonding inter-actions with carboxyl-ate, water and nitro O-atom acceptors, forming a three-dimensional structure.

| S-EPMC3629491 | biostudies-literature

catena-Poly[[{diaqua-[2-(4-hy-droxy-phen-yl)acetato-κO,O']cerium(III)}-bis-[μ-2-(4-hy-droxy-phen-yl)acetato]-κO,O':O;κO:O,O'] 4,4'-bipyridine disolvate monohydrate].

Project description:In the polymeric title complex, {[Ce(C(8)H(7)O(3))(3)(H(2)O)(2)]·2C(10)H(8)N(2)·H(2)O}(n), the Ce(III) ion is coordinated by ten O atoms from four 2-(4-hy-droxy-phen-yl)acetate (HPAA) ligands and two water mol-ecules. One HPAA ligand coordinates just to one Ce(III) ion, whereas the remaining two bridge two Ce(III) ions. The 4,4'-bipyridine mol-ecule and one water mol-ecule are not coordinated to Ce. In the crystal, O-H⋯O and O-H⋯N hydrogen bonds link mol-ecules into a three-dimensional network.

| S-EPMC3011412 | biostudies-literature

Tetra-aqua-bis-[2-(2-nitro-phen-yl)acetato-κO]cobalt(II).

Project description:The mol-ecule of the title compound, [Co(C8H6NO4)2(H2O)4], is centrosymmetric. It is a cobalt(II) complex, bearing two (2-nitro-phen-yl)acetate and four aqua ligands. The coordination around the Co(II) atom is distorted octa-hedral, defined by four O atoms of water mol-ecules in the equatorial plane and by two carboxyl-ate O atoms at axial positions. The dihedral angles between the benzene ring and the acetate and nitro groups are 61.90 (10) and 19.21 (11)°, respectively. The water mol-ecules form O-H⋯O hydrogen bonds with the nitro and carboxyl-ate groups, leading to a layered structural arrangement parallel to (001).

| S-EPMC4350698 | biostudies-literature

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