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Bis(nitrato-κO)[(S)-2-(pyrrolidin-2-yl)-1H-benzimidazole]cadmium(II).

ABSTRACT: The title compound, [Cd(NO(3))(2)(C(11)H(13)N(3))(2)], was synthesized by hydro-thermal reaction of Cd(NO(3))(2) and S-2-(pyrrolidin-2-yl)-1H-1,3-benzimidazole. The Cd atom lies on an inversion centre. The distorted octa-hedral Cd environment contains two planar trans-related N,N-chelating S-2-(pyrrolidin-2-yl)-1H-1,3-benzimidazole ligands in one plane and two monodentate nitrate ligands. N-H⋯O hydrogen bonds involving a nitrate O atom build up an infinite chain parallel to the a axis.

SUBMITTER: Dai W

PROVIDER: S-EPMC2961940 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Crystal structure of bis-[2-(1H-benzimidazol-2-yl-κN 3)aniline-κN]bis-(nitrato-κO)cadmium(II).

Project description:In the title compound, [Cd(NO3)2(C13H11N3)2], the CdII atom lies on a twofold rotation axis and is coordinated by four N atoms and two O atoms, provided by two bidentate 2-(1H-benzimidazol-2-yl)aniline ligands, and two nitrato O atoms, forming a distorted octa-hedral geometry [range of bond angles around the Cd atom = 73.82 (2)-106.95 (8)°]. In the ligand, the dihedral angle between the aniline ring and the benzimidazole ring system is 30.43 (7)°. The discrete complex mol-ecule is stabilized by an intra-molecular N-H⋯O hydrogen bond. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules, forming a three-dimensional network.

| S-EPMC6775742 | biostudies-literature

Bis[2-(pyrrolidin-2-yl)-1H-benzimidazole-?N,N]copper(II) dinitrate dihydrate.

Project description:In the title compound, [Cu(C(11)H(13)N(3))(2)](NO(3))(2)·2H(2)O, synthesized by hydro-thermal reaction of Cu(NO(3))(2) and racemic 2-(pyrrolidin-2-yl)-1H-1,3-benzimidazole, the Cu(II) atom lies on an inversion centre. The distorted octa-hedral Cu(II) environment contains two planar trans-related N,N-chelating 2-(pyrrolidin-2-yl)-1H-1,3-benzimidazole ligands in the equatorial plane and two monodentate nitrate anions, which are in weak inter-action with the Cu atom, in the axial positions. The two benzimidazole ligands have opposite configurations (R/S and S/R) and compound is a meso complex. In the crystal, N-H?O and O-H?O hydrogen bonds generate an infinite three-dimensional network. One methylene group of the pyrrolidine ring is disordered over two position with a 0.56?(3):0.44?(3) occupancy.

| S-EPMC2969581 | biostudies-literature

[Aqua-bis-(nitrato-κO)copper(II)]-μ-{bis-[5-methyl-3-(pyridin-2-yl)-1H-pyrazol-4-yl]selenide}-[diaqua-(nitrato-κO)copper(II)] nitrate monohydrate.

Project description:In the title binuclear complex, [Cu2(NO3)3(C18H16N6Se)(H2O)3]NO3·H2O, the Cu(II) ions are penta-coordinated in a tetra-gonal-pyramidal geometry. In both cases, the equatorial planes are formed by a chelating pyrazole-pyridine group, a water mol-ecule and a nitrate O atom, whereas the apical positions are occupied by a water mol-ecule for one Cu(II) ion and a nitrate O atom for the other. The organic selenide ligand adopts a trans configuration with respect to the C-Se-C plane. Numerous inter-molecular O-H⋯O and N-H⋯O hydrogen bonds between the coordinating and lattice water mol-ecules, nitrate anions and pyrazole groups are observed. π-π stacking inter-actions between the pyridine rings [averaged centroid-centroid distance = 3.652 (5) Å] are also present. The lattice water molecule is equally disordered over two sets of sites.

| S-EPMC3588734 | biostudies-literature

Bis{6-meth-oxy-2-[(4-methyl-phen-yl)-iminio-meth-yl]phenolato-κO,O'}bis-(nitrato-κO,O')cadmium(II).

Project description:The Schiff base 6-meth-oxy-2-[(4-methyl-phen-yl)imino-meth-yl]-phenol (HL) forms a neutral complex with cadmium(II) nitrate, [Cd(NO(3))(2)(C(15)H(15)NO(2))(2)], in which the four O atoms of the two independent ligands are coordinated to the metal center and the protonated imine N atoms are involved in a hydrogen bond with the phenoxide group. Intra-molecular N-H⋯O hydrogen-bonding inter-actions stabilize the structure. Each organic ligand assumes a zwitterionic form, chelating to the metal atom through the two O atoms, while the two nitrate groups also exhibit chelating behavior, leading to a distorted octahedral coordination of the Cd atom.

| S-EPMC2959626 | biostudies-literature

Dibromido[(S)-2-(pyrrolidin-2-yl)-1H-benzimidazole]zinc(II).

Project description:The title compound, [ZnBr(2)(C(11)H(13)N(3))], was synthesized by hydro-thermal reaction of ZnBr(2) and (S)-2-(pyrrolidin-2-yl)-1H-benzimidazole. The Zn(II) atom has a distorted tetra-hedral geometry and is coordinated by two N atoms from the chelating organic ligand and two terminal Br(-) anions. In the crystal structure, mol-ecules are linked into a chain along the [101] direction by N-H⋯Br and C-H⋯Br hydrogen bonds.

| S-EPMC2961939 | biostudies-literature

Bis[(2-amino-phen-yl)methanol-κO,N]bis-(nitrato-κO)manganese(II).

Project description:In the title compound, [Mn(NO(3))(2)(C(7)H(9)NO)(2)], the Mn(II) atom (site symmetry 2) is coordinated by two N,O-bidentate (2-amino-phen-yl)methanol ligands and two monodentate nitrate anions in a distorted cis-MnN(2)O(4) octa-hedral coordination geometry. In the crystal, N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds help to establish the packing.

| S-EPMC3007911 | biostudies-literature

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.

Project description:The title compound, [Ni(2)(C(7)H(5)O(3))(4)(C(7)H(6)N(2))(4)][Ni(C(7)H(5)O(3))(2)(C(7)H(6)N(2))(2)]·6H(2)O, is a mononuclear/dinuclear nickel(II) cocrystal, the two mol-ecular species inter-acting through hydrogen bonds that involve the uncoordinated water mol-ecules. In the mononuclear species, the Ni(II) ion, located on an inversion center, is coordinated by two 1H-benzimidazole (bzim) ligands and two 3-hydroxy-benzoate (hba) anions in a square-planar geometry. In the centrosymmetric dinuclear species, the Ni(II) ion is coordinated by two bzim ligands and three hba anions in a square-pyramidal geometry; of the two independent hba anions, one bridges two Ni(II) ions with both carboxylate and hydroxyl groups whereas the other coordin-ates in a unidentate manner to the Ni(II) ion. The apical Ni-O(hydrox-yl) bond is 0.39 Å longer than the basal Ni-O(carbox-yl) bonds. The face-to-face separation of 3.326 (9) Å indicates the existence of π-π stacking between parallel bzim ligands of adjacent dinuclear entities. Extensive N-H⋯O and O-H⋯O hydrogen bonds help to stabilize the crystal structure.

| S-EPMC2960256 | biostudies-literature

Bis[μ-2,2'-dimethyl-1,1'-(oxydiethyl-ene)bis-(1H-benzimidazole)-κN:N]bis-[bis-(4-methoxy-benzoato-κO,O')cadmium(II)].

Project description:The title complex, [Cd(2)(C(8)H(7)O(3))(4)(C(20)H(22)N(4)O)(2)], forms a dimer of the paddle-wheel type, located on a crystallographic inversion centre. The Cd(II) ion is hexa-coordinated by four carboxylate O atoms [Cd⋯O = 2.280 (2)-2.404 (2) Å] from two chelating 4-methoxy-benzoate anions, and two N atoms [Cd⋯N = 2.313 (2) and 2.332 (2) Å] from one chelating 2,2'-dimethyl-3,3'-(oxydiethyl-ene)bis-(1H-benzimidazole) ligand. In the crystal, mol-ecules are linked by a weak inter-molecular C-H⋯O hydrogen bond and an inter-molecular C-H⋯π inter-action.

| S-EPMC2983921 | biostudies-literature

Bis[bis-(2-ethyl-5-methyl-1H-imidazol-4-yl-κN)methane](nitrato-κO,O')nickel(II) nitrate.

Project description:In the title compound, [Ni(NO(3))(C(13)H(20)N(4))(2)]NO(3), the Ni(II) ion shows a distorted octa-hedral geometry formed by four N atoms from two bis-(2-ethyl-5-methyl-1H-imidazol-4-yl)methane ligands and two O atoms from a chelating nitrate anion. Three ethyl groups in the complex cation and the O atoms of the uncoordinated nitrate anion are disordered over two sets of positions [occupancy ratios of 0.52 (3):0.48 (3) and 0.63 (3):0.37 (3), respectively]. In the crystal, inter-molecular N-H⋯O hydrogen bonds connect the complex cations into a zigzag chain along [010] and further N-H⋯O hydrogen bonds between the chains and the uncoordinated nitrate anions lead to layers parallel to (100).

| S-EPMC3051755 | biostudies-literature

Bis-(1H-benzimidazole-κN)bis(4-methyl-benzoato-κO,O')cobalt(II).

Project description:In the title mononuclear complex, [Co(C(8)H(7)O(2))(2)(C(7)H(6)N(2))(2)], the Co(II) atom is coordinated by four carboxylate O atoms from two 4-methyl-benzoate ligands and two N atoms from two benzimidazole ligands in an octa-hedral coordination geometry. The molecules are assembled via inter-molecular N-H⋯O hydrogen-bonding inter-actions into a three-dimensional network.

| S-EPMC2961044 | biostudies-literature

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