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Bis[?-2-(pyridin-2-yl)ethano-lato]bis-[bromidocopper(II)].

ABSTRACT: The title compound, [Cu(2)Br(2)(C(7)H(8)NO)(2)], was synthesized by reaction of CuBr(2) with 2-(pyridin-2-yl)ethanol (hep-H) in methanol. The asymmetric unit consists of one hep ligand and a CuBr unit. The Cu(2+) ion is thereby coordinated by the N atom and the deprotonated hydroxy O atom in a distorted square-planar geometry that is completed by another O atom. The latter acts as bridging ligand towards the second, symmetry-equivalent, Cu atom, thus generating a centrosymmetric dimeric unit, with the inversion centre halfway between the Cu atoms. These units are linked via C-H?Br and C-H?O hydrogen bonds, leading to the formation of a hydrogen-bonded one-dimensional-polymeric chain along a..

SUBMITTER: Shaikh MM

PROVIDER: S-EPMC3247533 | biostudies-literature | 2011 Nov

REPOSITORIES: biostudies-literature

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Bis[μ-2-(pyridin-2-yl)ethano-lato]bis-[bromidocopper(II)].

Shaikh M Mobin MM Mathur Saloni S Uddin Md Jamal MJ

Acta crystallographica. Section E, Structure reports online 20111029 Pt 11

The title compound, [Cu(2)Br(2)(C(7)H(8)NO)(2)], was synthesized by reaction of CuBr(2) with 2-(pyridin-2-yl)ethanol (hep-H) in methanol. The asymmetric unit consists of one hep ligand and a CuBr unit. The Cu(2+) ion is thereby coordinated by the N atom and the deprotonated hydroxy O atom in a distorted square-planar geometry that is completed by another O atom. The latter acts as bridging ligand towards the second, symmetry-equivalent, Cu atom, thus generating a centrosymmetric dimeric unit, wi ...[more]

PMID: 22219838

Similar Datasets

Crystal structure of bis-{μ-2-[bis-(2-hy-droxy-eth-yl)amino]-ethano-lato}bis-(μ-3,5-di-methyl-pyrazolato)tricopper(II) dibromide sesquihydrate.

Project description:In the title bicyclic trinuclear pyrazolate amino-alcohol complex, [Cu3(C5H7N2)2(C6H14NO3)2]Br2·1.5H2O, the central Cu atom lies on a center of symmetry and is involved in the formation of two five-membered rings. It has a coordination number of 4, is in a distorted tetra-hedral environment and is connected by the bridging oxygen atoms of the deprotonated OH groups of different amino-alcohol groups, and by the N atoms of deprotonated di-methyl-pyrazole ligands. The peripheral Cu atom is in a trigonal-bipyramidal coordination environment formed by the nitro-gen atom of the deprotonated bridging di-methyl-pyrazole unit, the bridging oxygen atom of the deprotonated OH group, two oxygen atoms of the protonated hy-droxy groups and the nitro-gen atom of tri-ethano-lamine. One of the C atoms and the Br- anion were found to be disordered over two positions with occupancy factors of 0.808 (9):0.192 (9) and 0.922 (3):0.078 (3), respectively.

| S-EPMC7534225 | biostudies-literature

catena-Poly[[[di-aqua-bis-[1,2-bis-(pyridin-4-yl)diazene]copper(II)]-μ-1,2-bis-(pyridin-4-yl)diazene] bis-(perchlorate)].

Project description:In the title compound, {[Cu(C10H8N4)3(H2O)2](ClO4)2} n , the coordination environment of the cationic Cu(II) atom is distorted octa-hedral, formed by pairs of symmetry-equivalent 1,2-bis-(pyridin-4-yl)diazene ligands, bridging 1,2-bis-(pyridin-4-yl)diazene ligands and two non-equivalent water mol-ecules. The 1,2-bis-(pyridin-4-yl)diazene mol-ecules form polymeric chains parallel to [-101] via azo bonds which are situated about inversion centres. Since the Cu(II) atom is situated on a twofold rotation axis, the monomeric unit has point symmetry 2. The perchlorate anions are disordered in a 0.536 (9):0.464 (9) ratio and are acceptors of water H atoms in medium-strong O-H⋯O hydrogen bonds with graph set R 4 (4)(12). The water mol-ecules, which are coordinated to the Cu(II) atom and are hydrogen-bonded to the perchlorate anions, form columns parallel to [010]. A π-π inter-action [centroid-centroid distance = 3.913 (2) Å] occurs between pyridine rings, and weak C-H⋯O inter-actions also occur.

| S-EPMC3684881 | biostudies-literature

Bis[μ-3,5-bis-(pyridin-2-yl)pyrazolato]bis-[(hexa-fluoro-phosphato)copper(II)].

Project description:The title dinuclear complex mol-ecule, [Cu2(C13H9N4)2(PF6)2], lies about an inversion center. The Cu(II) atom shows a square-pyramidal coordination geometry with the basal plane formed by four N atoms of the two bis-chelating 3,5-bis-(pyridin-2-yl)pyrazolate ions and with one F atom of the hexa-fluoro-phosphate ion in the apical position. Mol-ecules are stacked in a column along the a axis through C-H⋯F hydrogen bonds. The columns are further linked by other C-H⋯F hydrogen bonds, forming a three-dimensional network.

| S-EPMC3793691 | biostudies-literature

Poly[[μ-1,3-bis-(pyridin-3-yl)urea]bis-(μ<sub>4</sub>-glutarato)dicopper(II)].

Project description:The title compound, [Cu2(C5H6O4)2(C11H10N4O)]n, contains square-pyramidally coordinated CuII ions linked by anti-gauche conformation glutarate (glu) ligands into [Cu2(glu)2]n di-periodic coordination polymer layers with embedded [Cu2(OCO)4] paddlewheel clusters. In turn, the layer motifs are connected by 1,3-di(pyridin-3-yl)urea (3-dpu) linkers to form a [Cu2(glu)2(3-dpu)]n tri-periodic coordination polymer network. Treating the [Cu2(OCO)4] clusters as 6-connected nodes reveals an underlying 41263 pcu topology according to TOPOSPRO software [Blatov et al. (2014 ▸). Cryst. Growth Des. 14, 3576-3586].

| S-EPMC10561227 | biostudies-literature

Azido-{2-[bis-(2-hy-droxy-eth-yl)amino]-ethano-lato-?N,O,O',O''}cobalt(II).

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| S-EPMC3011546 | biostudies-literature

Bis[(5-bromo-pyridin-2-yl)methano-lato-?(2) N,O]copper(II) monohydrate.

Project description:In the title compound, [Cu(C6H5BrNO)2]·H2O, the Cu(II) ion has a square-planer N2O2 coordination environment. Slipped ?-? stackings [centroid-centroid distances: 3.625?(3), 3.767?(3), 3.935?(3) and 4.255?(3)?Å] between pyridine rings and Cu?? inter-actions (centroid-to-Cu(II) distance: 3.56?Å) between Cu(2+) ions and pyridine rings lead to a layered arrangement parallel to (010). Inter-molecular Br?O inter-actions [Br?O distances: 2.904?(3) and 3.042?(3)?Å] and O-H?O hydrogen bonds form a three-dimensional network structure.

| S-EPMC3884248 | biostudies-literature

Poly[bis-{μ-N'-[(pyridin-4-yl)methyl-idene]benzohydrazidato}copper(II)].

Project description:In the title complex, [Cu(C13H10N3O)2] n , the copper(II) cation is located on a crystallographic inversion centre and adopts an elongated octa-hedral coordination geometry with the equatorial plane provided by trans-arranged bis-N,O-chelating acyl-hydrazine groups from two ligands and the apices by the N atoms of two pyridine rings belonging to symmetry-related ligands. The ligand adopts a Z conformation about the C=N double bond. The dihedral angle between the pyridine and phenyl rings is 2.99 (13)°. An intra-ligand C-H⋯N hydrogen bond is observed. In the crystal, each ligand bridges two adjacent metal ions, forming a (4,4) grid layered structure. π-π stacking inter-actions [centroid-centroid distances in the range 3.569 (4)-3.584 (9) Å] involving rings of adjacent layers result in the formation of a three-dimensional supra-molecular network.

| S-EPMC3772419 | biostudies-literature

Tetra-kis{μ(3)-2-[(2-hy-droxy-eth-yl)amino]-ethano-lato}tetra-kis-[chloridonickel(II)] methanol solvate.

Project description:The complex mol-ecule of the title compound, [Ni(4)(C(4)H(10)NO(2))(4)Cl(4)]·CH(3)OH, consists of a cubane-like {Ni(4)O(4)} core in which each nickel(II) atom is six-coordinated in a distorted octa-hedral geometry by one N and four O atoms of three mono-deprotonated diethano-lamine ligands and by a chloride anion. The mol-ecular conformation is stabilized by intra-molecular O-H⋯Cl bonds. In the crystal structure, complex mol-ecules and methanol solvent mol-ecules are linked into a three-dimensional network by N-H⋯Cl, N-H⋯O and O-H⋯Cl hydrogen-bonding inter-actions.

| S-EPMC3007071 | biostudies-literature

Crystal structure of poly[{μ-N,N'-bis[(pyridin-4-yl)meth-yl]oxalamide}-μ-oxalato-cobalt(II)].

Project description:In the polymeric title compound, [Co(C2O4)(C14H14N4O2)] n , the Co(II) atom is six-coordinated by two N atoms from symmetry-related bis-[(pyridin-4-yl)meth-yl]oxalamide (BPMO) ligands and four O atoms from two centrosymmetric oxalate anions in a distorted octa-hedral coordination geometry. The Co(II) atoms are linked by the oxalate anions into a chain running parallel to [100]. The chains are linked by the BPMO ligands into a three-dimensional architecture. In addition, N-H⋯O hydrogen bonds stabilize the crystal packing.

| S-EPMC4186178 | biostudies-literature

catena-Poly[[copper(II)-bis-[μ-bis-(pyridin-3-yl)methanone-κN:N']] bis-(tetra-fluorido-borate)].

Project description:In the title complex, {[Cu(C(11)H(8)N(2)O)(2)](BF(4))(2)}(n), the Cu(II) ion is situated on an inversion centre and adopts an N(4)F(2) octa-hedral coordination geometry with four N atoms from four different bis-(pyridin-3-yl)methanone ligands at the equatorial sites and two independent tetra-fluoridoborate anions weakly bonded at the axial sites via two F atoms [Cu⋯F = 2.613 (3) Å]. Chains with the bridging ligands are formed along the a axis. C-H⋯F inter-actions stabilize the structure. C-O⋯π inter-actions also occur.

| S-EPMC3238772 | biostudies-literature

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