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Cis-Bis-(2,2'-bipyrid-yl)dicyanato-cobalt(II).

ABSTRACT: In the title complex, [Co(NCO)(2)(C(10)H(8)N(2))(2)], the Co atom is coordinated by four N atoms from two 2,2'-bipyridyl ligands and two N atoms from two cyanate anions in a distorted octa-hedral geometry. The Co atom lies on a twofold rotation axis. The average Co-N bond length is 2.126 (7) Å. Weak inter-molecular C-H⋯O inter-actions lead to the formation of a three-dimensional network.

SUBMITTER: Jia L

PROVIDER: S-EPMC2960999 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Hexa-?(2)-benzoato-bis-(2,2'-bipyrid-yl)trimanganese(II) monohydrate.

Project description:The complex molecule of the title compound, [Mn(3)(C(7)H(5)O(2))(6)(C(10)H(8)N(2))(2)]·H(2)O, contains a linear array of divalent manganese ions. The central Mn(II) atom, which is located on a crystallographic inversion center, is coordinated octa-hedrally by six benzoate O atoms. The two terminal Mn(II) ions are six-coordinated by four benzoate O atoms and two N atoms of 2,2'-bipyridyl. The central Mn(II) atom and the terminal Mn(II) ions are bridged by four benzoate ligands in a bidentate fashion, whereas the other two carboxyl-ate ligands form bridges through one O atom only and chelate the terminal Mn(II) atom. The mol-ecules pack together via van der Waals attractions and C-H?O hydrogen bonds.

| S-EPMC2961620 | biostudies-literature

Bis(?-5-carboxyl-atotetra-zolido)bis-[aqua-(2,2'-bipyrid-yl)cadmium(II)].

Project description:In the title dinuclear Cd(II) complex, [Cd(2)(C(2)N(4)O(2))(2)(C(10)H(8)N(2))(2)(H(2)O)(2)], each Cd atom is in a slightly distorted octa-hedral coordination by two N atoms and one O atom of two 1H-tetra-zole-5-carboxyl-ate (TZC) ligands, two N atoms of a 2,2'-bipyridyl ligand and one water O atom. The TZC ligand acts in a tridentate N,O-chelating N-bridging mode to two symmetry-equivalent Cd(II) atoms. The complex reveals mol-ecular C(i) symmetry. Extensive O-H?O hydrogen bonding plays an important role in the crystal packing.

| S-EPMC3007395 | biostudies-literature

(2,2-Bipyrid-yl)bis-(?-penta-methyl-cyclo-penta-dien-yl)strontium(II).

Project description:In the title compound, [Sr(C(10)H(15))(2)(C(10)H(8)N(2))], the Sr-N distances are 2.624?(3) and 2.676?(3)?Å, the Sr?Cp ring centroid distances are 2.571 and 2.561?Å and the N-C-C-N torsion angle in the bipyridine ligand is -2.2?(4)°. Inter-estingly, the bipyridine ligand is tilted. The angle between the plane defined by the Sr atom and the two bipyridyl N atoms and the plane defined by the 12 atoms of the bipyridine ligand is 10.7?(1)°.

| S-EPMC2960620 | biostudies-literature

Bis(2,2'-bipyrid-yl)(dichloro-acetato)copper(II) dichloro-acetate dihydrate.

Project description:In the title compound, [Cu(C(2)HCl(2)O(2))(C(10)H(8)N(2))(2)](C(2)HCl(2)O(2))·2H(2)O, the Cu(II) ion is bonded to two N,N'-bidentate 2,2'-bipyridyl ligands and one O-monodentate 2,2-dichloro-acetate anion in a distorted CuON(4) trigonal-bipyramidal geometry, with the O atom occupying an equatorial site. In the crystal, the components are linked by O-H?O and O-H?Cl hydrogen bonds.

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Bis(2,2'-bipyrid-yl)bromidocopper(II) bromide bromo-acetic acid hemihydrate.

Project description:In the title compound, [CuBr(C(10)H(8)N(2))(2)]Br·BrCH(2)COOH·0.5H(2)O, the Cu(II) ion is coordinated by four N atoms [Cu-N = 1.985 (6)-2.125 (7) Å] from two 2,2'-bipyridine ligand mol-ecules and a bromide anion [Cu-Br = 2.471 (2) Å] in a distorted trigonal-bipyramidal geometry. Short centroid-centroid distances [3.762 (5) and 3.867 (5) Å] between the aromatic rings of neighbouring cations suggest the existence of π-π inter-actions. Inter-molecular O-H⋯Br hydrogen bonds and weak C-H⋯O and C-H⋯Br inter-actions consolidate the crystal packing.

| S-EPMC2971989 | biostudies-literature

Poly[[diaqua-bis-(μ2-4,4'-bipyrid-yl)cobalt(II)] dinitrate tetra-hydrate].

Project description:The title compound, {[Co(C10H8N2)2(H2O)2](NO3)2·4H2O} n , (C10H8N2 = 4,4'-bipyridine = 4,4'-bpy) is a layered coordination polymer built up from a cationic square grid extending in (101) enclosing uncoordinating nitrate ions and water mol-ecules. The Co(II) ion has site symmetry 2 and one of the 4,4'-bpy ligands is generated by twofold symmetry [two N atoms and two C atoms lie on the rotation axis and the dihedral angle between the pyridine rings is 45.66 (5)°]. The other 4,4'-bpy ligand is generated by a crystallographic inversion center. The Co(II) ion exhibits a slightly distorted octa-hedral coordination geometry defined by two O atoms of two coordinating water mol-ecules and four N atoms from four bridging 4,4'-bpy ligands. The structure is consolidated by O-H⋯O, C-H⋯O and C-H⋯N hydrogen bonds.

| S-EPMC3629466 | biostudies-literature

Diazido-(2,2'-bipyrid-yl)dimethanol-nickel(II).

Project description:The title complex, [Ni(N(3))(2)(C(10)H(8)N(2))(CH(3)OH)(2)], lies on a twofold roation axis which runs through the Ni(II) ion and the mid-point of the bipyridine ligand. The Ni(II) ion is coordinated in a distorted octa-hedral environment by two azide ligands in a trans configuration. The methanol ligands are in a cis configuration and their hy-droxy groups form intra-molecular O-H?(N,N) hydrogen bonds with the azide ligands.

| S-EPMC3009301 | biostudies-literature

Crystal structure of μ-oxalodi-hydroxamato-bis-[(2,2'-bipyrid-yl)(di-methyl sulfoxide-κO)copper(II)] bis-(perchlorate).

Project description:The centrosymmetric binuclear complex, [Cu2(C2H2N2O4)(C10H8N2)2(C2H6OS)2](ClO4)2, contains two copper(II) ions, connected through an N-deprotonated oxalodi-hydroxamic acid dianion, two terminal 2,2'-bi-pyridine ligands, and two apically coordinating dimethylsulfoxide mol-ecules. Two non-coordinating perchlorate anions assure electrical neutrality. The copper(II) ions in the complex dication [Cu2(C10H8N2)2(μ-C2H2N2O4)(C2H6SO)2](2+) are in an O2N3 square-pyramidal donor environment, the Cu-Cu separation being 5.2949 (4) Å. Two hydroxamate groups in the deprotonated oxalodi-hydroxamic acid are located trans to one each other. In the crystal, O-H⋯O and C-H⋯O hydrogen bonds link the complex cations to the perchlorate anions. Further C-H⋯O hydrogen bonds combine with π-π contacts with a centroid-to-centroid separation of 3.6371 (12) Å to stack the mol-ecules along the a-axis direction.

| S-EPMC4770973 | biostudies-literature

A binuclear molybdenum oxyfluoride: ?-oxido-bis-[(2,2'-bipyrid-yl)fluoridodioxidomolybdenum(VI)].

Project description:The title compound, [Mo(2)F(2)O(5)(C(10)H(8)N(2))(2)], is a centrosymmetric binuclear molybdenum(VI) species with the metal atoms in a distorted octa-hedral environment. The coordination geometries of the symmetry-equivalent molybdenum sites are defined by the cis-terminal oxide groups and the N-atom donors of the bipyridyl ligand in the equatorial plane with axial F and bridging O atoms. The bridging O atom occupies a center of symmetry. The mol-ecules stack in the a-axis direction, and the crystal packing is stabilized by weak intra- and inter-molecular C-H?O and C-H?F hydrogen bonds.

| S-EPMC3007386 | biostudies-literature

Diazido-bis(2,2'-biimidazole)cobalt(II).

Project description:In the title compound, [Co(N(3))(2)(C(6)H(6)N(4))(2)], the Co(II) atom lies on a centre of inversion and is bonded to two azide ions and two bidentate 2,2'-biimidizole ligands, giving a slightly distorted octa-hedral CoN(6) coordination geometry. In the crystal structure, inter-molecular N-H⋯N hydrogen bonds exist between the 2,2'-biimidizole ligands and the azide ions, linking the complexes into sheets.

| S-EPMC2914954 | biostudies-literature

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