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Catena-Poly[[?-bromido-(?-hydroxydi-2-pyridylmethano-lato-?N,O:O,N')dicopper(II)(Cu-Cu)]-di-?-bromido].

ABSTRACT: The title complex, [Cu(2)Br(3)(C(11)H(9)N(2)O(2))](n), was one of three isolated by slow evaporation of an acetonitrile reaction mixture of CuBr(2) with di-2-pyridyl ketone (1:1 molar ratio). The title complex contains a 2:1 metal-to-ligand ratio of copper(II) with the hydrated form of the ligand, di-2-pyridylmethane-diol. The two copper centers are bridged by a bromide ion and the alk-oxy O atom, and the Cu-Cu distance is 2.9801?(5)?Å. The dimeric units are further linked by bromide ions, leading to a two-dimensional extended bridged structure. O-H?O hydrogen bonds are present in the crystal structure.

SUBMITTER: Zeller M

PROVIDER: S-EPMC2960673 | biostudies-literature | 2008 Aug

REPOSITORIES: biostudies-literature

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catena-Poly[[μ-bromido-(μ-hydroxydi-2-pyridylmethano-lato-κN,O:O,N')dicopper(II)(Cu-Cu)]-di-μ-bromido].

Zeller Matthias M Westcott Barry L BL Kopp-Vaughn Kristin M KM Hunter Allen D AD

Acta crystallographica. Section E, Structure reports online 20080806 Pt 9

The title complex, [Cu(2)Br(3)(C(11)H(9)N(2)O(2))](n), was one of three isolated by slow evaporation of an acetonitrile reaction mixture of CuBr(2) with di-2-pyridyl ketone (1:1 molar ratio). The title complex contains a 2:1 metal-to-ligand ratio of copper(II) with the hydrated form of the ligand, di-2-pyridylmethane-diol. The two copper centers are bridged by a bromide ion and the alk-oxy O atom, and the Cu-Cu distance is 2.9801 (5) Å. The dimeric units are further linked by bromide ions, leadi ...[more]

PMID: 21201583

Similar Datasets

catena-Poly[[di-?-iodido-dicopper(I)(Cu-Cu)]bis-(?-4,4'-di-3-pyridyl-2,2'-disulfanediyldipyrimidine)].

Project description:The title complex, [Cu(2)I(2)(C(18)H(12)N(6)S(2))(2)](n), contains a Cu(2)I(2) core with a Cu-Cu distance of 2.6935?(14)?Å. The Cu(I) atom is coordinated by two bridging 4,4'-di-3-pyridyl-2,2'-disulfanediyldipyrimidine ligands and two bridging I atoms, forming a double chain.

| S-EPMC2980262 | biostudies-literature

catena-Poly[[(2,9-dimethyl-1,10-phenanthroline-?(2)N,N')lead(II)]-di-?-bromido].

Project description:In the title compound, [PbBr(2)(C(14)H(12)N(2))](n), the Pb(II) atom lies on a twofold rotation axis. The N-heterocycle-chelated Pb(II) atom exists in a distorted octa-hedral geometry owing to two long Pb?Br inter-actions [2.9562?(5) and 3.2594?(5)?Å]. These result in a zigzag chain running along the c axis. The lone pair is stereochemically inactive.

| S-EPMC3379072 | biostudies-literature

catena-Poly[[bis-(pyrazine-2-carbox-amide-κN)mercury(II)]-di-μ-bromido].

Project description:In the crystal structure of the title compound, [HgBr(2)(C(5)H(5)N(3)O)(2)](n), the Hg(II) cation is located on an inversion center and is coordinated by two N atoms from the pyrazine rings and four bridging Br(-) anions in a distorted octa-hedral geometry. The Br(-) anions bridge the Hg(II) cations with significantly different Hg-Br bond distances of 2.4775 (8) and 3.1122 (8) Å, forming polymeric chains running along the a axis. Inter-molecular N-H⋯O and N-H⋯N hydrogen bonds are effective in the stabilization of the crystal structure.

| S-EPMC2979956 | biostudies-literature

Poly[bis(phenethyl-ammonium) [di-bromido-plumbate(II)]-di-μ-bromido]].

Project description:Crystals of the title compound, {(C(6)H(5)C(2)H(4)NH(3))(2)[PbBr(4)]}(n), were grown at room temperature from a solution in N,N-dimethyl-formamide (DMF) using nitro-methane as the poor solvent. This perovskite-type organic-inorganic hybrid compound consists of well ordered sheets of corner-sharing disordered PbBr(6) octa-hedra separated by bilayers of phenethyl-ammonium cations. The octa-hedra are rotated and tilted due to N-H⋯Br hydrogen bonds with the ammonium groups, generating a superstructure in the unit cell similar to that of the tetra-chloridoplumbate (C(6)H(5)C(2)H(4)NH(3))(2)[PbCl(4)].

| S-EPMC2970995 | biostudies-literature

catena-Poly[[di-μ-bromido-dicopper(I)]bis-[μ-η,σ-4-(2-allyl-2H-tetra-zol-5-yl)pyridine]].

Project description:The title compound, [CuBr(C(9)H(9)N(5))](n), prepared by the solvothermal treatment of CuBr with 4-(2-allyl-2H-tetra-zol-5-yl)pyridine, is a new homometallic Cu(I)-olefin coordination polymer in which dinuclear Cu(2)Br(2) units are linked by the organic olefin ligand 4-(2-allyl-2H-tetra-zol-5-yl)pyridine, which acts as a bidentate ligand connecting two neighbouring Cu(2)Br(2) units through the pyridine N atom and the double bond of the allyl group. The coordination of Cu(I) is slightly distorted tetrahedral.

| S-EPMC2961675 | biostudies-literature

catena-Poly[di-?3-bromido-hexa-?2-bromido-dibromidobis(O-methyl pyridine-2-carboximidate-?(2) N,N')penta-mercury(II)].

Project description:The title compound, [Hg5Br10(C7H8N2O)2] n , contains two ?3-bridging Br atoms, six ?2-bridging Br atoms and two terminal Br atoms. One Hg(II) atom, lying on an inversion center, adopts a distorted octa-hedral geometry defined by six Br atoms. Two Hg(II) atoms adopt a distorted square-pyramidal geometry by five Br atoms and the other two Hg(II) atoms have a distorted tetra-hedral geometry by two N atoms from a chelating O-methyl pyridine-2-carboximidate ligand and two Br atoms. The Br atoms link the Hg(II) atoms into a ribbon structure along [100].

| S-EPMC3588746 | biostudies-literature

Syntheses, crystal structures and thermal properties of catena-poly[cadmium(II)-di-μ-bromido-μ-pyridazine-κ2N1:N2] and catena-poly[cadmium(II)-di-μ-iodido-μ-pyridazine-κ2N1:N2]

Project description:In the crystal structures of the title compounds, the cadmium cations are octahedrally coordinated by four halide anions and two pyridazine ligands in a trans-CdX4N2 (X = Br, I) arrangement and are linked into chains by the halide anions and the pyridazine ligands. The reactions of cadmium bromide and cadmium iodide with pyridazine (C4H4N2) in ethanol under solvothermal conditions led to the formation of crystals of [CdBr2(pyridazine)]n (1) and [CdI2(pyridazine)]n (2), which were characterized by single-crystal X-ray diffraction. The asymmetric units of both compounds consist of a cadmium cation located on the intersection point of a twofold screw axis and a mirror plane (2/m), a halide anion that is located on a mirror plane and a pyridazine ligand, with all atoms occupying Wyckoff position 4e (mm2). These compounds are isotypic and consist of cadmium cations that are octahedrally coordinated by four halide anions and two pyridazine ligands and are linked into [100] chains by pairs of μ-1,1-bridging halide anions and bridging pyridazine ligands. In the crystals, the pyridazine ligands of neighboring chains are stacked onto each other, indicating π–π interactions. Larger amounts of pure samples can also be obtained by stirring at room-temperature, as proven by powder X-ray diffraction. Measurements using thermogravimetry and differential thermoanalysis (TG-DTA) reveal that upon heating all the pyridiazine ligands are removed in one step, which leads to the formation of CdBr2 or CdI2.

| S-EPMC10088319 | biostudies-literature

catena-Poly[[(N,N-di-methyl-cyanamide-κN)lithium]-μ3-bromido].

Project description:The title complex, [LiBr(C3H6N2)] n , is the unexpected product of a reaction beteween (Dipp)N(Li)SiMe3 (Dipp = 2,6-diiso-propyl-phen-yl), Me2NCN and CuBr. The compound is a one-dimensional polymer with a step structure derived from the association of inversion dimers, formed by bromido ligands bridging two Li(+) cations, each of which carries a di-methyl-cyanamide ligand. The planar (LiBr)2 unit of the polymer core has a regular rhombic shape [Li-Br-Li 77.55 (16)° and Br-Li-Br 102.45 (16)°]. These (LiBr·NCNMe2)2 dimers represent the repeat unit of a polymer system propagated by additional Br-Li and Li-Br bonds generating an infinite step structure along the a-axis direction.

| S-EPMC3998269 | biostudies-literature

Crystal structure of catena-poly[[cadmium(II)-di-?2-bromido-?2-l-proline-?(2) O:O'] monohydrate].

Project description:In the title coordination polymer, {[CdBr2(C5H9NO2)]·H2O} n , the Cd(II) ion is coordinated by four bromido ligands and two carboxyl-ate oxygen atoms of two symmetry-related proline ligands, which exist in a zwitterionic form, in a distorted octa-hedral geometry. There is an intra-molecular N-H?O hydrogen bond between the amino group and the carboxyl-ate fragment. Each coordinating ligand bridges two Cd(II) atoms, thus forming polymeric chains running along the c-axis direction. The water mol-ecules of crystallization serve as donors for the weak inter-molecular O-H?O and O-H?Br hydrogen bonds that link adjacent polymeric chains, thus forming a three-dimensional structure. N-H?O and N-H?Br hydrogen bonds also occur.

| S-EPMC4384587 | biostudies-literature

catena-Poly[[(4,4'-dimethyl-2,2'-bipyridine-?(2) N,N')cadmium]-di-?-bromido].

Project description:In the crystal of the title polymeric compound, [CdBr2(C12H12N2)] n , the Cd(II) cation is located on a twofold rotation axis and is six-coordinated in a distorted octa-hedral geometry formed by two N atoms from the 4,4'-dimethyl-2,2'-bipyridine ligand and by four bridging Br(-) anions. The bridging function of the Br(-) anions leads to a polymeric chain running along the c axis. Weak C-H?? inter-actions observed between adjacent chains are effective in the stabilization of the three-dimensional packing.

| S-EPMC3588747 | biostudies-literature

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