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Bis(2,2'-bipyridine-κN,N')(nitrato-κO)copper(II) perchlorate.

ABSTRACT: In the title compound, [Cu(NO(3))(C(10)H(8)N(2))(2)]ClO(4), the five-coordinated Cu(II) atom has a distorted square-pyramidal CuN(4)O environment; the O atom is in the axial position whereas the N atoms from two bipyridine (bipy) ligands are in the equatorial plane. In the crystal, mol-ecules are assembled by C-H⋯O hydrogen bonding and π-π inter-actions between bipy groups [centroid-centroid distances = 3.7686 (16) and 3.7002 (16) Å] into a three-dimensional network. The nitrite anion is equally disordered over two sets of sites.

SUBMITTER: Zhu Y

PROVIDER: S-EPMC3051949 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Bis(2,2'-bipyridine-κN,N')(thio-cyanato-κN)copper(II) perchlorate.

Project description:The asymmetric unit of title compound, [Cu(NCS)(C(10)H(8)N(2))(2)]ClO(4), contains a bis-(2,2'-bipyridine)(isothio-cyanato)copper(II) cation and a perchlorate anion. In the cation, the Cu(2+) ion is coordinated by four N atoms from two bidentate 2,2'-bipyridine mol-ecules and an N atom from an isothio-cyanate anion, resulting in a distorted CuN(5) pyramidal configuration. The crystal structure is stabilized by weak inter-molecular C-H⋯O and C-H⋯S hydrogen bonds, and weak π-π inter-actions between 2,2'-bipyridine rings [centroid-centroid distance = 3.908 (4) Å]. The perchlorate counteranion is disordered over two positions in a 0.66:0.34 ratio.

| S-EPMC2969965 | biostudies-literature

Diaqua-(2,2'-bipyridine-κN,N')bis-(perchlorato-κO)copper(II).

Project description:The central CuN(2)O(4) motif of the title compound, [Cu(ClO(4))(2)(C(10)H(8)N(2))(H(2)O)(2)], exhibits a Jahn-Teller-distorted octa-hedral geometry around the metal atom, showing a considerably long Cu-O bond distance of 2.5058 (12) Å towards the second perchlorate group, giving a (4 + 1+1)-type coordination mode. In the crystal, the components are linked via inter-molecular O-H⋯O hydrogen bonds, forming layers parallel to (001). Additional stabilization within these layers is provided by π-π [centroid-centroid distances of 3.7848 (9)-4.4231 (9) Å] stacking inter-actions.

| S-EPMC3089365 | biostudies-literature

Di-μ(2)-chlorido-bis-[aqua-(2,2'-bipyridine-4,4'-dicarboxylic acid-κN,N')(nitrato-κO)copper(II)].

Project description:In the title compound, [Cu(2)Cl(2)(NO(3))(2)(C(12)H(8)N(2)O(4))(2)(H(2)O)(2)], which consists of a chloride-bridged Cu(II) dimer, the Cu atom is in a distorted octa-hedral environment defined by two N atoms from the 2,2'-bipyridine-4,4'-dicarboxylic acid ligand (H(2)bpdca), two bridging chlorido ligands, and two O atoms from an equatorial water mol-ecule and an axial nitrate anion, respectively. The two halves of the dimeric unit are related by an inversion centre at the midpoint between the two Cu atoms. Both carboxylic acid groups in the H(2)bpdca ligand remain protonated, as confirmed by the two sets of C-O bond lengths. The dinuclear mol-ecules are linked into a three-dimensional network via inter-molecular hydrogen bonds.

| S-EPMC2959964 | biostudies-literature

Bis(2,2'-bipyridine-κN,N')chloridocobalt(II) perchlorate.

Project description:In the cation of the title compound, [CoCl(C(10)H(8)N(2))(2)]ClO(4), the Co(II) atom displays a distorted trigonal-bipyramidal coordination geometry. The two pyridine rings in each 2,2'-bipyridine ligand form dihedral angles of 10.75 (12) and 4.28 (13)°. The crystal packing is stabilized by inter-ionic C-H⋯O hydrogen bonds, C-H⋯π inter-actions and aromatic π-π stacking inter-actions, with centroid-centroid distances of 3.616 (7) Å.

| S-EPMC2971918 | biostudies-literature

Bis(2,2'-bipyridine-κN,N')(croconato-κO,O')nickel(II).

Project description:The title compound, [Ni(C(5)O(5))(C(10)H(8)N(2))(2)], lies across a crystallographic twofold axis, around which two 2,2'-bipyridine (2,2'-bipy) ligands are arranged in a propeller manner. The local geometry of the NiN(4)O(2) coordination core basically adopts an octa-hedral geometry. The mol-ecular twofold axis is along the direction of the mol-ecular dipole moment, and the complex is packed with its dipole moment alternately along the +b and -b directions. The crystal structure is stabilized by inter-molecular C-H⋯O hydrogen bonds.

| S-EPMC2959560 | biostudies-literature

(2,2'-Bipyridine-κN,N')bis-(3-meth-oxy-benzoato-κO,O)copper(II) mono-hydrate.

Project description:The title compound, [Cu(C(8)H(7)O(3))(2)(C(10)H(8)N(2))]·H(2)O, is comprised of a Cu(II) ion, two 3-meth-oxy-benzoate ligands, a 2,2'-bipyridine (bipy) ligand and one uncoordinated water mol-ecule. The Cu(II) ion and the water O atom lie on a twofold axis. The Cu(II) ion exhibits a six-coordinate distorted octa-hedral geometry, with two N atoms from the bipy ligand [Cu-N = 1.9996 (16) Å] and four O atoms from two 3-meth-oxy-benzoate ligands [Cu-O = 1.9551 (15) and 2.6016 (16) Å]. The mol-ecules are linked by O-H⋯O and C-H⋯O hydrogen bonds, forming a three-dimensional network.

| S-EPMC3052164 | biostudies-literature

Bis(μ-hexa-deca-noato-κO:O)bis-[(2,2'-bipyridine-κN,N')(hexa-deca-noato-κO)copper(II)] methanol disolvate.

Project description:The asymmetric unit of the title compound, [Cu(2)(C(16)H(31)O(2))(4)(C(10)H(8)N(2))(2)]·2CH(3)OH, contains one half-mol-ecule of the metal complex solvated by a methanol mol-ecule. In the complex, two of the metal atoms are doubly bridged by two monodentate bridging hexa-deca-noate ligands around a center of inversion. The square-pyramidal geometry around each Cu(II) ion is completed by a terminal hexa-deca-noate O atom and two N atoms from a 2,2'-bipyridine ligand. The alkyl chains of the carboxyl-ate ligands are arranged in a parallel manner with an all-trans conformation. In the crystal, a π-π inter-action formed by the bipyridine rings [centroid-centroid separation = 3.7723 (17) Å] and inter-molecular C-H⋯O hydrogen bonds link the complex mol-ecules into infinite chains along the b axis. An O-H⋯O interaction between the methanol solvate and one of the carboxylate O atoms is also observed.

| S-EPMC3089362 | biostudies-literature

Acetonitrile-{3-[bis-(2-pyridyl-methyl-κN)amino-κN]propanol-κO}(perchlorato-κO)copper(II) perchlorate.

Project description:In the title compound, [Cu(ClO(4))(C(2)H(3)N)(C(15)H(19)N(3)O)]ClO(4), the Cu(II) ion is coordinated by three N atoms and a hydroxyl-O atom of the tetra-dentate ligand, an O atom of a perchlorate ion and an N atom of an acetonitrile ligand giving a tetra-gonally distorted octa-hedral environment around the copper(II) atom. There is an offset inter-complex face-to-face π-π inter-action [centroid-centroid distance = 3.718 (2) Å] involving one of the pyridine rings of the ligand as well as an intra-complex O-H⋯O hydrogen-bonding inter-action between the coordinated hydroxyl group of the ligand and the perchlorate counter-ion.

| S-EPMC3051508 | biostudies-literature

Bis(2,2'-bipyridine-κN,N')(maleato-κO,O)nickel(II) 7.34-hydrate.

Project description:The title compound, [Ni(C(4)H(2)O(4))(C(10)H(8)N(2))(2)]·7.34H(2)O, was obtained by crystallization from an aqueous ethano-lic reaction mixture containing nickel(II) acetate, maleic acid, bipyridine, sodium hydroxide and ammonia. The asymmetric unit contains one independent complex mol-ecule and 7.34 water mol-ecules occupying eight crystallographically independent positions. Two of these water molecules are disordered. The nickel(II) atom is coordinated in a distorted octa-hedral geometry by two O atoms from one carboxyl-ate group of the maleato ligand and by four N atoms from two 2,2'-bipyridine (bipy) ligands. The water mol-ecules, along with the O atoms of the uncoordinated carboxyl-ate group, form an extended hydro-philic three-dimensional hydrogen-bonded system with large cavities in which the hydro-phobic bipy ligands are located. One H atom of the maleate ligand is involved in a weak hydrogen bond of the C-H⋯O type. Stacking inter-actions between the pyridyl rings of the bipy ligands [centroid-centroid distance = 3.549 (15) Å] lead to the formation of pairs of complex mol-ecules.

| S-EPMC2960002 | biostudies-literature

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

| S-EPMC2961165 | biostudies-literature

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