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(2,2'-Bipyridine-?N,N')bis-(4-methyl-benzoato-?O,O')lead(II).

ABSTRACT: In the title compound, [Pb(C(8)H(7)O(2))(2)(C(10)H(8)N(2))], the Pb(II) ion is coordinated by two N atoms from one 2,2'-bipyridine ligand and four O atoms from two 4-methyl-benzoate anions in a distorted pseudo-square-pyramidal environment, considering one of the carboxyl-ate anions as an apical ligand. Pairs of complex mol-ecules related by inversion centers are organized into dimers via pairs of Pb?O inter-actions [3.185?(2)?Å] and stacking interactions between 2,2'-bipyridine and 4-methyl-benzoate ligands, with a mean distance between their planes of 3.491?Å.

SUBMITTER: Dai J

PROVIDER: S-EPMC2983694 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature

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(2,2'-Bipyridine-κN,N')bis-(4-methyl-benzoato-κO,O')lead(II).

Dai Jun J Yang Juan J Li Yingjie Y

Acta crystallographica. Section E, Structure reports online 20100213 Pt 3

In the title compound, [Pb(C(8)H(7)O(2))(2)(C(10)H(8)N(2))], the Pb(II) ion is coordinated by two N atoms from one 2,2'-bipyridine ligand and four O atoms from two 4-methyl-benzoate anions in a distorted pseudo-square-pyramidal environment, considering one of the carboxyl-ate anions as an apical ligand. Pairs of complex mol-ecules related by inversion centers are organized into dimers via pairs of Pb⋯O inter-actions [3.185 (2) Å] and stacking interactions between 2,2'-bipyridine and 4-methyl-ben ...[more]

PMID: 21580242

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(2,2'-Bipyridine-?N,N')bis-(4-methyl-benzoato-?O,O')zinc(II).

Project description:In the title compound, [Zn(C(8)H(7)O(2))(2)(C(10)H(8)N(2))], the Zn(II) atom is coordinated by four O atoms from two chelating 4-methyl-benzoate ligands and two N atoms from a 2,2'-bipyridine ligand, displaying a disordered octahedral geometry. C-H?O hydrogen bonds connect the complex mol-ecules into a three-dimensional supra-molecular structure.

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Bis(benzoato-?O,O')(2,2'-bipyridine-?N,N')lead(II) benzoic acid monosolvate.

Project description:The reaction of lead acetate, benzoic acid and 2,2'-bipyridine (bipy) in aqueous solution yielded the title complex, [Pb(C(7)H(5)O(2))(2)(C(10)H(8)N(2))]·C(7)H(6)O(2). The asymmetric unit contains two independent complex mol-ecules as well as two independent benzoic acid solvent mol-ecules, one of which is disordered over two positions with almost equal occupancies [0.504?(5) and 0.496?(5)]. The two complex mol-ecules have similar configurations with the hexa-coordinated environment of the Pb(II) atom formed by four carboxyl-ate O atoms of two chelate benzoate ligands and two N atoms of the bipy ligand. The Pb-O bonds involving one of the benzoate ligands are almost coplanar with Pb-N bonds to the bipy ligand [dihedral angles of 12.67?(11) and 14.73?(11)°] ; if the second benzoate ligand is treated as one coordination site, the overall coordination may be represented as a distorted pseudo-square pyramid. Weak inter-molecular Pb?O inter-actions [3.046?(3) and 3.359?(3)?Å] link each of the complex mol-ecules into two symmetry-independent centrosymmetric dimers. Hydrogen bonds involving the carboxyl H atoms of solvent benzoic acid mol-ecules and metal-coordinated carboxyl-ate O atoms link complex mol-ecules and benzoic acid solvent mol-ecules into insular aggregates.

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Aqua-(2,2'-bipyridine)bis-(4-hydroxy-benzoato)zinc(II).

Project description:In the title complex, [Zn(C(7)H(5)O(3))(2)(C(10)H(8)N(2))(H(2)O)], the Zn(II) ion is coordinated by two 4-hydroxy-benzoate anions, one 2,2'-bipyridine mol-ecule and one water mol-ecule and displays a distorted octa-hedral geometry. One Zn-O bond [2.5300?(15)?Å] is much longer than the others in the mol-ecule. In the crystal structure, the face-to-face separation of 3.547?(9)?Å suggests no ?-? stacking between parallel bipyridine ring systems, and an extensive O-H?O hydrogen-bonding network between the coordinated water molecule, the phenol group and carboxylate O atoms is present.

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Bis(2,2'-bipyridine-?N,N')(4-methyl-benzoato-?O,O')copper(II) iodide hemihydrate.

Project description:The title compound, [Cu(C(8)H(7)O(2))(C(10)H(8)N(2))(2)]I·0.5H(2)O, was obtained by the hydro-thermal reaction of copper(I) iodide, 4-methyl-benzoic acid and 2,2'-bipyridine. The initial reactant of Cu(I) was oxidized to Cu(II). The asymmetric unit contains two independent complex mol-ecules, two I(-) ions and one water molecule. Each Cu(II) atom is coordinated by two O atoms from a 4-methyl-benzoate ligand and four N atoms from two 2,2'-bipyridine ligands, displaying a distorted octa-hedral geometry. The structure involves O-H?I hydrogen bonds between the water mol-ecule and iodide ions and ?-? stacking inter-actions between the benzene and pyridyl rings [centroid-centroid distance = 3.79?(1)?Å] and between the pyridyl rings [centroid-centroid distance = 3.87?(1)?Å].

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catena-Poly[[bis-(3-methyl-benzoato-?O,O')lead(II)]-?-4,4'-bipyridine-?N:N'].

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(2,2'-Bipyridine-?N,N')bis-(4-hydroxy-benzoato-?O,O')lead(II) monohydrate.

Project description:The reaction of lead acetate, 4-hydroxy-benzoic acid and 2,2'-bipyridine in aqueous solution gave the title complex, [Pb(C(7)H(5)O(3))(2)(C(10)H(8)N(2))]·H(2)O. The asymmetric unit contains one Pb(II) atom, two 4-hydroxy-benzoate ligands, one 2,2'-bipyridine ligand and one uncoordinated water mol-ecule. The Pb(II) atom is hexa-coordinated in a distorted tetra-gonal-bipyramidal geometry and is chelated by four carboxyl-ate O atoms and two N atoms. O-H?O hydrogen-bonding inter-actions, involving the uncoordinated water, the carboxyl-ate O atoms and hydr-oxy O atoms, produce a three-dimensional supra-molecular structure.

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?-4,4'-Bipyridine-?N:N'-bis-[bis-(2-chloro-benzoato-?O,O')lead(II)].

Project description:In the title dinuclear complex, [Pb(2)(C(7)H(4)ClO(2))(4)(C(10)H(8)N(2))], the Pb(II) atom is five-coordinated by four carboxyl-ate O atoms from two 2-chloro-benzoate ligands and one N atom from a bridging 4,4'-bipyridine (4,4'-bpy) ligand, displaying a hemi-directed coordination. The 4,4'-bpy ligand has an inversion center at the mid-point of the central C-C bond. The empty side of the metal ion is capped by two carboxyl-ate O atoms from a neighboring mol-ecule, with weak Pb?O contacts [Pb?O = 3.069?(2) and 3.071?(3)?Å]. The crystal structure is stabilized by C-H?O hydrogen bonds and ?-? stacking inter-actions between the benzene and pyridine rings [centroid-centroid distance = 3.749?(3)?Å].

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Aqua-(2,2'-bipyridine-?N,N')bis-(4-iodo-benzoato-?O)copper(II).

Project description:The Cu(II) atom in the title compound, [Cu(C(7)H(4)IO(2))(2)(C(10)H(8)N(2))(H(2)O)], is N,N'-chelated by a 2,2'-bipyridine ligand and is coordinated by two monodentate carboxyl-ate ions and a water mol-ecule in a distorted square-pyramidal geometry. The apical site is occupied by one of the carboxyl-ate O atoms. The water mol-ecule forms intra-molecular hydrogen bonds to the uncoordinated carboxyl O atoms. The crystal studied was a nonmerohedral twin with minor components in 0.381?(3) and 0.108?(2) proportions.

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(2,2'-Bipyridine-?(2)N,N')bis-(4-formyl-benzoato-?O(1))copper(II).

Project description:The title mononuclear Cu(II) complex, [Cu(C(8)H(5)O(3))(2)(C(10)H(8)N(2))], is comprised of a Cu(II) cation, two 4-formyl-benzoate (L(-)) ligands and a 2,2'-bipyridine (bipy) ligand. The Cu(II) ion and bipy ligand lie on a crystallographic twofold rotation axis; the Cu(II) ion is coordinated by two N atoms from one bipy ligand and two O atoms from two different carboxyl-ate groups of two L(-) ligands, exhibiting effectively a distorted square-planar geometry. The complex mol-ecules are inter-linked to generate two-dimensional supra-molecular layers in the ab plane, formed by C-H?O hydrogen bonds, where the O acceptor is the O atom from the carboxyl-ate group not involved in coordination to the Cu(II) ion. The two-dimensional layers are stacked in a sequence via C-H?O hydrogen-bonding inter-actions where the formyl O atom acts as acceptor.

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Bis(?-2,2'-disulfanediyldibenzoato)bis-[aqua-(2,2'-bipyridine)-nickel(II)].

Project description:In the centrosymmetric title complex, [Ni(2)(C(14)H(8)O(4)S(2))(2)(C(10)H(8)N(2))(2)(H(2)O)(2)], the Ni(II) atom is coordinated by two N atoms from one 2,2'-bipyridine ligand, three carboxyl-ate O atoms (one bidentate and one monodentate) from two different disulfanediyldibenzoate ligands and one O atom from a coordinated water mol-ecule in an octa-hedral coordination geometry. The disulfanediyldibenzo-ate dianion bridges two Ni(II )atoms. Adjacent mol-ecules are linked through the coordinated water mol-ecules, forming a O-H?O hydrogen-bonded chain running along the a axis.

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