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Dibromido(4,7-diazadecane-1,10-di-amine)-copper(II).

ABSTRACT: In the title compound, [CuBr(2)(C(8)H(22)N(4))], the Cu(II) atom is six-coordinate forming a distorted octa-hedral complex and is bonded to two axial bromide anions and four equatorial nitro-gen donors. The equatorial Cu-N bond distances range from 2.005 (8) to 2.046 (8) Å while the axial Cu-Br distances are 2.8616 (17) and 2.9402 (17) Å, thus the six-coordinate Cu complex shows the usual Jahn-Teller distortion. All amine hydrogen atoms participate in either inter- or intra-molecular hydrogen bonding to the Br anions.

SUBMITTER: Assey GE

PROVIDER: S-EPMC3200928 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Bis(4,7-dichloro-1,10-phenanthroline-κN,N')bis-(dicyanamido-κN)copper(II).

Project description:In the title compound, [Cu(C(2)N(3))(2)(C(12)H(6)Cl(2)N(2))(2)], the Cu(II) atom is coordinated by two chelating 4,7-dichloro-1,10-phenanthroline (4,7-Cl-phen) ligands and two dicyanamide (dca) ligands in a cis arrangement, forming a distorted octa-hedral geometry. The equatorial plane is occupied by three N atoms from two 4,7-Cl-phen ligands and one N atom from a dca ligand at shorter Cu-N distances. Due to the Jahn-Teller effect, the axial positions are occupied by a 4,7-Cl-phen N atom and a dca N atom at longer Cu-N distances. The dca ligands are nearly planar, with a maximum deviations of 0.006 (1) Å. The crystal structure is stabilized by weak C-H⋯N hydrogen bonds, with cyanide N atoms as acceptors, and π-π inter-actions between adjacent phenyl rings [centroid-centroid distance = 3.725 (3) Å].

| S-EPMC2979476 | biostudies-literature

Dibromido[1,1'-dibutyl-2,2'-(pentane-1,1-di-yl)di-1H-benzimidazole]-copper(II).

Project description:In the title compound, [CuBr(2)(C(27)H(36)N(4))], the Cu(II) ion exhibits a distorted tetra-hedral coordination geometry provided by two bromide ions and by chelation of two imine N-atom donors from a bis-(benzimidazole) ligand. Chelation results in a six-membered boat-shaped ring which links the benzimidazole groups. Each bis-(benzimidazole) fragment contains three n-butyl substituents, two of which have the expected trans conformation; the third exhibits the higher-energy cis conformation, an orientation consistent with several short intra-molecular C-H⋯Br inter-actions. Essentially planar (r.m.s. deviations of 0.0101 and 0.0183 Å) benzimidazole groups are oriented so as to give the bis-(benzimidazole) fragment a V-shaped appearance in profile with the cis and trans n-butyl groups directed to opposite sides of the planes. In the crystal, columns of mol-ecules along the b-axis direction form layers parallel to the (202) planes. Within a given column, the mol-ecules are linked by C-H⋯Br hydrogen bonds. The mol-ecules in adjacent columns are also linked by inter-molecular C-H⋯π interactions, forming a three-dimensional network.

| S-EPMC3007084 | biostudies-literature

Dibromido(1,10-phenanthroline-?N,N')palladium(II).

Project description:In the title complex, [PdBr(2)(C(12)H(8)N(2))], the Pd(II) ion is four-coordinated in a slightly distorted square-planar environment by two N atoms of the chelating 1,10-phenanthroline ligand and two bromide ions. The complex displays numerous inter-molecular ?-? inter-actions between adjacent six-membered rings, the shortest centroid-centroid distance being 3.680?(4)?Å. The nearly planar [maximum deviation 0.143?(2)?Å] mol-ecules stack in columns parallel to (101) with a Pd?Pd distance of 4.8466?(9)?Å.

| S-EPMC2980023 | biostudies-literature

(Di-2-pyridyl-amine)-(methanol)sulfato-copper(II).

Project description:The title complex, [Cu(SO(4))(C(10)H(9)N(3))(CH(3)OH)], is a mononuclear species with the Cu(II) ion in a Jahn-Teller-distorted '4 + 1' square-pyramidal geometry. The basal plane is defined by the pyridyl N-atom donors of the bipyridyl-amine (bpa) ligand and two O-atom donors of the sulfate ligand. The coordination geometry is completed by the axial coordination of a methanol O-atom donor. The axial bond length displays the usual elongation: Cu-O(axial) = 2.168?(2), Cu-O(basal) = 2.016?(2) (average) and Cu-N(basal) = 1.951?(3)?Å (average). In the crystal structure, the complex mol-ecules are linked through N-H?O and O-H?O hydrogen bonds into chains along [100].

| S-EPMC3009304 | biostudies-literature

Bis(?(2)-4,7-dimethyl-4,7-diazadecane-1,10-dithiolato)trinickel(II) bis(perchlorate).

Project description:In the title compound, [Ni(3)(C(10)H(22)N(2)S(2))(2)](ClO(4))(2), the complex cation consists of a nickel(II) ion and two [Ni(C(10)H(22)N(2)S(2))] units with an N(2)S(2) tetra-dentate ligand, 3,3'-[1,2-ethane-diylbis(methyl-imino)]bis-(1-propane-thiol-ate). The central Ni(II) ion is located on a crystallographic inversion centre and is bound to the four S atoms of the two [Ni(C(10)H(22)N(2)S(2))] units to form a linear sulfur-bridged trimetallic moiety. The dihedral angle between the central NiS(4) plane and the terminal NiN(2)S(2) plane is 145.71?(5)°. In the [Ni(C(10)H(22)N(2)S(2))] unit, the two methyl groups on the chelating N atoms are cis to each other, and the two six-membered N,S-chelate rings adopt a chair conformation. The Ni-S bond lengths and the S-Ni-S bite angles in the central NiS(4) group are similar to those in the [Ni(C(10)H(22)N(2)S(2))] unit.

| S-EPMC3297259 | biostudies-literature

Dibromido(2,9-dimethyl-1,10-phenanthroline-κN,N')mercury(II).

Project description:In the mol-ecule of the title compound, [HgBr(2)(C(14)H(12)N(2))], the Hg(II) atom is four-coordinated in a distorted tetra-hedral configuration by two N atoms from a 2,9-dimethyl-1,10-phenanthroline ligand and by two Br atoms. In the crystal structure, weak inter-molecular C-H⋯Br hydrogen bonds link the mol-ecules into chains along the b axis. There are π-π contacts between the phenanthroline rings [centroid-centroid distances = 3.806 (4), 3.819 (4), 3.739 (3), 3.690 (3), 3.619 (4) and 3.674 (3) Å].

| S-EPMC2977550 | biostudies-literature

Dibromido(di-2-pyridyl-amine-?(2)N(2),N(2'))platinum(II).

Project description:The Pt(II) ion in the title complex, [PtBr(2)(C(10)H(9)N(3))], is four-coordinated in an essentially square-planar environment by two N atoms from a chelating di-2-pyridyl-amine (dpa) ligand and two Br(-) anions. The dpa ligand is not planar, with the dihedral angle between the pyridine rings being 40.8?(2)°. The complex mol-ecules are stacked in columns along [001] through ?-? inter-actions between the pyridine rings [centroid-centroid distances = 3.437?(3) and 3.520?(3)?Å]. Inter-molecular N-H?Br hydrogen bonds connect the mol-ecules into chains running along [010]. Intra-molecular C-H?Br interactions are also observed.

| S-EPMC3343850 | biostudies-other

Dichlorido(4,7-dimethoxy-1,10-phenanthroline-κ2N,N′)zinc(II)

Project description: Not available

| S-EPMC10842281 | biostudies-literature

Di-?-chlorido-bis-[(1,10-phenanthroline-?N,N')(trichloro-acetato-?O)copper(II)].

Project description:The title compound, [Cu(2)(C(2)Cl(3)O(2))(2)Cl(2)(C(12)H(8)N(2))(2)], features a centrosymmetric binuclear complex. The coordination geometry around the Cu(II) atom is square-pyramidal, comprising two N atoms from a symmetrically chelating 1,10-phenanthroline ligand, one O atom from a trichloro-acetate ligand and two Cl(-) anions. In addition, there is a weak intra-molecular Cu?O inter-action of 2.9403?(14)?Å involving the carbonyl O atom of the trichloro-acetate ligand. The central Cu(2)Cl(2) core takes the form of a rhombus, owing to the disparate Cu-Cl bond lengths. Mol-ecules are connected in the crystal structure by C-H?Cl and C-H?O inter-actions.

| S-EPMC3297214 | biostudies-literature

Di-?-bromido-bis-[bromido(4,7-diphenyl-1,10-phenanthroline-?(2) N,N')cadmium].

Project description:The title compound, [Cd2Br4(C24H16N2)2], consists of a centrosymmetric dimeric unit in which two Br atoms bridge two Cd(II) atoms, forming a four-membered ring. A terminal Br atom and a bidentate chelating 4,7-diphenyl-1,10-phenanthroline ligand complete a square-pyramidal geometry for the Cd(II) atom. In the crystal, C-H?Br hydrogen bonds and ?-? contacts between the pyridine and phenyl rings [centroid-centroid distances = 3.704?(4) and 3.715?(4)?Å] lead to a three-dimensional supra-molecular structure.

| S-EPMC3588733 | biostudies-literature

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