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

ABSTRACT: 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.

SUBMITTER: Shao YQ

PROVIDER: S-EPMC2961165 | biostudies-literature | 2008 Apr

REPOSITORIES: biostudies-literature

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

Shao Yan-Qiu YQ

Acta crystallographica. Section E, Structure reports online 20080410 Pt 5

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. ...[more]

PMID: 21202201

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

Project description: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.

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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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Bis(4-amino-benzoato)-?O,O';?O-(2,2'-bipyridine-?N,N')zinc.

Project description:In the title complex, [Zn(C(7)H(6)NO(2))(2)(C(10)H(8)N(2))], the Zn(II) cation is coordinated by two amino-benzoate anions and one 2,2'-bipyridine ligand in a distorted trigonal-bipyramidal geometry. The carboxyl-ate group of one aminobenzoate anion coordinates to the Zn(II) cation in a monodentate manner, whereas the carboxyl-ate group of the other amino-benzoate anion chelates the Zn cation with different Zn-O bond lengths. Inter-molecular N-H?N and N-H?O hydrogen bonding is present in the crystal structure.

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Bis(?-4-methyl-benzoato-?O:O')bis-[aqua-(4-methyl-benzoato-?O,O')zinc(II)]-bis-(?-4-methyl-benzoato-?O:O')bis-[(4-methyl-benzoato-?O)(nicotinamide-?N)zinc(II)]-water (1/1/2).

Project description:The crystal structure of the title compound, [Zn(2)(C(8)H(7)O(2))(4)(H(2)O)(2)]·[Zn(2)(C(8)H(7)O(2))(4)(C(6)H(6)N(2)O)(2)]·2H(2)O, consists of two kinds of dinuclear Zn(II) complexes (complex A and complex B) and uncoordinated water mol-ecules. In complex A, [Zn(2)(C(8)H(7)O(2))(4)(H(2)O)(2)], each Zn cation is chelated by a 4-methyl-benzoate (PMB) anion and coordinated by a water mol-ecule, and is further bridged by two PMB anions in a trigonal-bipyramidal geometry. In complex B, [Zn(2)(C(8)H(7)O(2))(4)(C(6)H(6)N(2)O)(2)], each Zn(II) cation is coordinated by a monodentate PMB anion and one nicotinamide (NA) ligand, and is further bridged by two PMB anions in a tetra-hedral geometry. Weak intra-mol-ecular ?-? stacking between adjacent benzene rings is observed in complex B, the centroid-centroid distance being 3.710?(2)?Å. Extensive O-H?O and N-H?O hydrogen bonding and weak C-H?O hydrogen bonding is present in the crystal structure. The crystal studied was a racemic twin; the minor twin component refined to 38%.

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

Project description:The asymmetric unit of the title compound, {[Zn(C(7)H(7)O(2))(2)(C(10)H(8)N(2))]·4H(2)O}(n), contains a highly distorted octa-hedral Zn(II) metal center strongly coordinated by two N atoms of two 4,4'-bipyridine (4,4'-bipy) ligands and chelated by two 4-methyl-benzoate anions. The crystallographic inversion center and glide plane present at the center of the C-C single bond of 4,4'-bipy, along with the cis coordination motif of the 4,4'-bipy, lead to one-dimensional zigzag chains. There are a large number of water mol-ecules in the crystal structure, which also form one-dimensional chains through O-H?O hydrogen bonds.

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Dichlorido(6-methyl-2,2'-bipyridine-?N,N')zinc(II).

Project description:In the mol-ecule of the title compound, [ZnCl(2)(C(11)H(10)N(2))], the Zn(II) atom is four-coordinated in a distorted tetra-hedral configuration by two N atoms from the 6-methyl-2,2'-bipyridine ligand and by two Cl atoms. There are ?-? contacts between the pyridine ring and the five-membered ring, and also between the pyridine rings, [centroid-centroid distances = 3.685?(3) and 3.757?(3)?Å, respectively].

| S-EPMC2959229 | biostudies-literature

Dibromido(6-methyl-2,2'-bipyridine-?N,N')zinc(II).

Project description:In the title compound, [ZnBr(2)(C(11)H(10)N(2))], the Zn(II) atom is four-coordinated in a distorted tetra-hedral configuration by two N atoms from a 6-methyl-2,2'-bipyridine ligand and two terminal Br atoms. Weak inter-molecular C-H?Br hydrogen bonds and ?-? stacking inter-actions between the pyridine rings [centroid-centroid distances = 3.763?(5) and 3.835?(6)?Å] contribute to crystal-packing effects.

| S-EPMC2983320 | biostudies-literature

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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Diaqua-bis(4-methyl-benzoato-κO)zinc(II).

Project description:The Zn atom in the title mononuclear complex, [Zn(C(8)H(7)O(2))(2)(H(2)O)(2)], lies on a special position of site symmetry 2. The carboxyl-ate group binds in a monodentate manner so that the geometry is best described as tetra-hedral. Adjacent mol-ecules are linked by O-H⋯O hydrogen bonds into a three-dimensional network.

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