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Bis(?-N-nitroso-N-phenyl-hydroxy-laminato)-?O,O':O';?O':O,O'-bis-[(N-nitroso-N-phenyl-hydroxy-laminato-?O,O')lead(II)].

ABSTRACT: The four cupferronate ions in the dinuclear title compound, [Pb(2)(C(6)H(5)N(2)O(2))(4)], O,O'-chelate to the two Pb(II) atoms; two of the four nitroso O atoms are also involved in bridging. The geometry of both five-coordinate Pb(II)atoms is distorted ?-octa-hedral; if another two longer inter-molecular Pb?O inter-actions [at 2.955?(1) and 3.099?(1)?Å] are considered, the geometry is a distorted ?-square anti-prism.

SUBMITTER: Najafi E

PROVIDER: S-EPMC3052047 | biostudies-literature | 2011 Feb

REPOSITORIES: biostudies-literature

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Bis(μ-N-nitroso-N-phenyl-hydroxy-laminato)-κO,O':O';κO':O,O'-bis-[(N-nitroso-N-phenyl-hydroxy-laminato-κO,O')lead(II)].

Najafi Ezzatollah E Amini Mostafa M MM Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20110226 Pt 3

The four cupferronate ions in the dinuclear title compound, [Pb(2)(C(6)H(5)N(2)O(2))(4)], O,O'-chelate to the two Pb(II) atoms; two of the four nitroso O atoms are also involved in bridging. The geometry of both five-coordinate Pb(II)atoms is distorted Ψ-octa-hedral; if another two longer inter-molecular Pb⋯O inter-actions [at 2.955 (1) and 3.099 (1) Å] are considered, the geometry is a distorted Ψ-square anti-prism. ...[more]

PMID: 21522298

Similar Datasets

Bis(N-nitroso-N-phenyl-hydroxy-laminato-κO,O')(1,10-phenanthroline-κN,N')lead(II).

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A second triclinic polymorph of bis-(?-N-nitroso-N-phenyl-hydroxy-laminato)-?(3)O,O':O';?(3)O':O,O'-bis-[(N-nitroso-N-phenyl-hydroxy-laminato-?(2)O,O')lead(II)].

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Bis(N-nitroso-N-pentyl-hydroxy-laminato-κ(2) O,O')copper(II).

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Bis(μ-3-hydroxy-benzoato)-κO:O;κO:O-bis-[bis-(1H-benzimidazole-κN)(3-hydroxy-benzoato-κO)nickel(II)] bis-(1H-benzimidazole-κN)bis-(3-hy-droxy-benzoato-κO)nickel(II) hexa-hydrate.

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Bis(μ-2-hydroxy-benozato)-κO,O':O';κO:O,O'-bis-[(2-hydroxy-benozato-κO,O')(1,10-phenanthroline-κN,N')cadmium(II)].

Project description:The dinuclear title compound, [Cd(2)(C(7)H(5)O(3))(4)(C(12)H(8)N(2))(2)], is located on a crystallographic rotation twofold axis. The two Cd(II) ions are connected by two tridentate bridging 2-hydroxy-benzoate anions. Each Cd(II) ion is seven-coordinated by five O atoms from three 2-hydroxy-benzoate ligands and two N atoms from 1,10-phenanthroline. The 2-hydroxy-benzoate mol-ecules adopt two kinds of coordination mode, bidentate chelating and tridentate bridging-chelating. Intra-molecular hydrogen bonds between hydr-oxy and carboxyl-ate groups from 2-hydroxy-benzoate groups and π-π stacking interactions between parallel 1,10-phenanthroline ligands [centroid-centroid distances = 3.707 (3) and 3.842 (3) Å] are observed. Furthermore, adjacent benzene rings from 2-hydroxy-benzoate ligands are involved in π-π inter-actions with inter-planar distances of 3.642 (3) Å, thereby forming a chain along the a axis direction.

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Diaqua-(nitrato-κO,O')bis-(l-phenyl-alaninato-κO,O')lead(II) nitrate.

Project description:In the title complex, [Pb(C(9)H(11)NO(2))(2)(NO(3))(H(2)O)(2)]NO(3), the cation is a monomeric species including zwitterionic amino-acids. In both zwitterions, rotation of the NH(3) (+) groups about their C-N bonds is blocked by inter-molecular N-H⋯O hydrogen bonds. Assuming a limit for Pb-O bond lengths of 3 Å, the Pb(II) ion is coordinated by eight O atoms. Each phenyl-alaninate ligand coordinates asymmetrically, with one short and one long Pb-O bond. Coordinated water mol-ecules are also found at significantly different distances, while the bidentate nitrate ion coordinates symmetrically. The resulting [Pb(II)O(8)] core is hemi-directed, with a void placed almost trans to a carboxyl-ate group. However, the 6s(2) lone pair of the metal center can not be considered as stereochemically active, as a non-coordinating O atom of a nitrate belonging to a symmetry-related cation is placed in the empty hemisphere, with a short Pb⋯O separation of 3.035 (10) Å.

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Bis(μ(2)-quinoline-2-carboxyl-ato)-κN,O:O;κO:N,O-bis-[(acetato-κO)(ethanol-κO)lead(II)].

Project description:In the centrosymmetric dinuclear title compound, [Pb(2)(C(10)H(6)NO(2))(2)(CH(3)COO)(2)(C(2)H(5)OH)(2)], one O atom of the carboxyl-ate group of the quinoline-2-carboxyl-ate anion connects the two Pb(II) atoms. The Pb(II) atom is surrounded by four O atoms and one N atom in a Ψ-octa-hedral PbO(4)NE geometry (E is the electron lone pair). Two longer Pb⋯O inter-actions distort the geometry towards a Ψ-square-anti-prism. Inter-molecular O-H⋯O hydrogen bonds link the mol-ecules.

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