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Bis(?-5-chloro-quinolin-8-olato)-?N,O:O;?O:N,O-bis-[(acetato-?O,O')lead(II)].

ABSTRACT: The mol-ecule of the title compound, [Pb(2)(C(9)H(5)ClNO)(2)(C(2)H(3)O(2))(2)], lies about a center of inversion. The Pb(II) atom is chelated by acetate and substituted quinolin-8-olate anions; the O atoms of the quinolin-8-olates also bridge to confer a five-coordinate status to each metal center. The geometry approximates a distorted ?-fac octa-hedron in which one of the sites is occupied by a stereochemically active lone pair.

SUBMITTER: Mohammadnezhad Sh G

PROVIDER: S-EPMC2968633 | biostudies-literature | 2009 Feb

REPOSITORIES: biostudies-literature

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Bis(μ-5-chloro-quinolin-8-olato)-κN,O:O;κO:N,O-bis-[(acetato-κO,O')lead(II)].

Mohammadnezhad Sh Gholamhossein G Amini Mostafa M MM Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20090211 Pt 3

The mol-ecule of the title compound, [Pb(2)(C(9)H(5)ClNO)(2)(C(2)H(3)O(2))(2)], lies about a center of inversion. The Pb(II) atom is chelated by acetate and substituted quinolin-8-olate anions; the O atoms of the quinolin-8-olates also bridge to confer a five-coordinate status to each metal center. The geometry approximates a distorted Ψ-fac octa-hedron in which one of the sites is occupied by a stereochemically active lone pair. ...[more]

PMID: 21582051

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Bis(2-methyl-quinolin-8-olato-?N,O)-lead(II).

Project description:The Pb(II) atom in the title compound, [Pb(C(10)H(8)NO)(2)], is chelated by two oxine (2-methyl-quinolin-8-olate) anions in a ?-trigonal-bipyramidal geometry; the N atoms occupy the axial sites. The mol-ecule lies about a twofold rotation axis.

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Bis(acetato-?O)bis-(?(3)-quinolin-8-olato-?N,O:O:O)tetra-kis(?(2)-quinolin-8-olato-?N,O:O)tetra-zinc(II) dihydrate.

Project description:In the centrosymmetric title compound, [Zn(4)(C(9)H(6)NO)(6)(C(2)H(3)O(2))(2)]·2H(2)O, the Zn(II) atom that is bonded to one O atom of the acetate group is chelated by a quinolin-8-olate anion. This Zn atom is also bonded to the oxide O atoms of two other quinolin-8-olate anions, which themselves engage in chelation to the other Zn(II) atoms. The Zn(II) atom is five-coordinate in a square-pyramidal coordination geometry. The second Zn(II) atom is six-coordinate as it is linked to two oxide O atoms of the anions that chelate to the acetate-bound metal atom, and is chelated by two quinolin-8-olate ligands. The uncoordinated water mol-ecule is disordered over two positions in a 4:1 ratio. O-H?O hydrogen bonds between the water molecules and the free O atoms of the carboxylate groups consolidate the crystal packing.

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Bis(?-2-methyl-quinolin-8-olato)-?N,O:O;?O:N,O-bis-[(acetato-?O,O')lead(II)].

Project description:Both independent Pb(II) atoms in the title compound, [Pb(2)(C(10)H(8)NO)(2)(C(2)H(3)O(2))(2)], are chelated by acetate and substituted quinolin-8-olate anions; the O atoms of the quinolin-8-olates also bridge to confer a five-coordinate status to each metal center. The geometry approximates a distorted ?-fac octa-hedron in which one of the sites is occupied by a stereochemically active lone pair.

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Bis(μ-2-methyl-quinolin-8-olato)-κN,O:O;κO:N,O-bis-[(acetato-κO)(methanol-κO)zinc(II)].

Project description:The reaction of zinc acetate and 2-methyl-8-hydroxy-quinoline in methanol yielded the centrosymmetric dinuclear title compound, [Zn(2)(C(10)H(8)NO)(2)(CH(3)CO(2))(2)(CH(3)OH)(2)], which has the Zn atom within a distorted NO(4) trigonal-bipyramidal coordination geometry. Methanol-acetate O-H⋯O hydrogen bonds link the dinculear units into a linear supra-molecular chain extending parallel to [100].

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(Amino-acetato-?O,N)bis-(quinolin-8-olato-?O,N)cobalt(III) methanol solvate.

Project description:In the crystal structure of the title compound, [Co(C(2)H(4)NO(2))(C(9)H(6)NO)(2)]·CH(3)OH, the Co(III) atom is chelated by two quinolin-8-olate and one glycinate anions in a distorted octa-hedral coordination geometry. The five-membered chelating glycinate ring assumes an envelope conformation. The complex mol-ecules are assembled by inter-molecular N-H?O hydrogen bonding.

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Bis(?-2-methyl-quinolin-8-olato)-?N,O:O;?O:N,O-bis-[(methanol-?O)(nitrato-?O,O')lead(II)].

Project description:The mol-ecule of the title compound, [Pb(2)(C(10)H(8)NO)(2)(NO(3))(2)(CH(3)OH)(2)], lies about a centre of inversion. The Pb atom is chelated by nitrate and substituted quinolin-8-olate anions. The O atom of the quinolin-8-olate also bridges, to confer a six-coordinate status on the metal centre. When a longer Pb?O inter-action is considered, the geometry approximates a ?-cube in which one of the sites is occupied by a stereochemically active lone pair.

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Bis(5-chloro-quinolin-8-olato-?N,O)bis-(propan-2-olato-?O)titanium(IV).

Project description:The Ti(IV) atom in the title compound, [Ti(C(9)H(5)ClNO)(2)(C(3)H(7)O)(2)], is chelated by the substituted quinolin-8-olate anions in a distorted octa-hedral geometry. The N-donor atoms are in a cis alignment as are the O atoms of the propan-2-olate groups; the O atoms of the quinolin-8-olate groups are trans to each other. One C atom of one propan-2-olate group is disordered over two positions with occupancies of 0.733?(8):0.267?(8).

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Bis(hexa-methyl-enetetra-mine)bis-(tri-chloro-acetato)copper(II).

Project description:In the title compound, [Cu(C(2)Cl(3)O(2))(2)(C(6)H(12)N(4))(2)], the Cu(II) ion (site symmetry 2) is coordinated by two trichloro-acetate anions and two hexa-methyl-enetetra-mine mol-ecules, resulting in a distorted CuN(2)O(2) geometry that is inter-mediate between tetra-hedral and square planar. The Cl atoms are disordered over two sets of sites, with relative occupancies of 0.749?(7) and 0.251?(7). In the crystal, the packing is consolidated by inter-molecular C-H?O inter-actions.

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Crystal structure of (pyridine-?N)bis(quinolin-2-olato-?(2) N,O)copper(II) monohydrate.

Project description:The title complex, [Cu(C9H6NO)2(C5H4N)]·H2O, adopts a slightly distorted square-pyramidal geometry in which the axial pyridine ligand exhibits a long Cu-N bond of 2.305?(3)?Å. The pyridine ligand forms dihedral angles of 79.5?(5) and 88.0?(1)° with the planes of the two quinolin-2-olate ligands, while the dihedral angle between the quinoline groups of 9.0?(3)° indicates near planarity. The water mol-ecule connects adjacent copper complexes through O-H?O hydrogen bonds to phenolate O atoms, forming a network inter-connecting all the complexes in the crystal lattice.

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Bis(?-2-methyl-quinolin-1-ium-8-olato-?O:O')bis-[(2-methyl-quinolin-1-ium-8-olato-?O)tris-(nitrato-?O,O')lanthanum(III)].

Project description:The two independent N-heterocycles in the centrosymmetric title compound, [La(2)(C(10)H(9)NO)(4)(NO(3))(6)], exist in the zwitterionic form. One of these binds to one metal center, whereas the other bridges two metal centers. The La atom is chelated by three nitrate groups and is surrounded by nine O atoms in a coordination environment based on a distorted monocapped square-anti-prism. The dinuclear structure is further stabilized by intra-molecular N-H?O(nitrate) hydrogen bonds.

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