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Di-μ(1,1)-azido-bis-[azido-(5,5'-dimethyl-2,2'-bipyridine)nickel(II)].

ABSTRACT: In the title azide-bridged dinuclear centrosymmetric nickel(II) complex, [Ni(2)(N(3))(4)(C(12)H(12)N(2))(2)], the Ni(II) atom is five-coordinated by two N atoms of the 5,5'-dimethyl-2,2'-bipyridine ligand and three N atoms from three azide ligands in a distorted trigonal-bipyramidal geometry. The Ni⋯Ni distance is 3.2398 (12) Å.

SUBMITTER: Hou J

PROVIDER: S-EPMC2959945 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Di-μ-hydroxido-κO:O-μ-trifluoro-methane-sulfonato-κO:O'-bis-[(5,5'-dimethyl-2,2-bipyridine-κN,N')(η-penta-methyl-cyclo-penta-dien-yl)ytterbium(III)] tetra-phenyl-borate 5,5'-dimethyl-2,2-bipyridine.

Project description:The title compound, [Yb(2)(CF(3)O(3)S)(C(10)H(15))(2)(OH)(2)(C(12)H(12)N(2))(2)](C(24)H(20)B)·C(12)H(12)N(2), crystallizes as a half-sandwich complex with a bridging trifluoro-methane-sulfonate as well as two bridging hydroxide groups. The bound bipyridine ligands have N-C-C-N torsion angles of 13.1 (9) and -12.1 (8)°. The structure also contains an uncoordinated 5,5'-dimethyl-2,2'-bipyridine molecule with an N-C-C-N torsion angle of 169.5 (7)°. The triply bridged Yb centers are 3.5990 (4) Å apart. The Yb-N bond lengths are in the range 2.389 (6)-2.424 (5) Å.

| S-EPMC2960390 | biostudies-literature

5,5'-Dimethyl-2,2'-bipyridine.

Project description:The asymmetric unit of the title compound, C(12)H(12)N(2), contains two half-mol-ecules related by an inversion center, the planes of their pyridine rings being oriented at a dihedral angle of 69.62?(4)°. In the crystal structure, a ?-? contact between the pyridine rings [centroid-centroid distance = 3.895?(3)?Å] may stabilize the structure. A weak C-H?? inter-action is also found.

| S-EPMC2969272 | biostudies-literature

3,3'-Dimethyl-1,1'-[2,2'-bipyridine-5,5'-diylbis(methyl-ene)]diimidazol-3-ium bis-(hexa-fluoro-phosphate).

Project description:The title compound, C(20)H(22)N(6) (2+)·2PF(6) (-), was prepared by the reaction of 5,5'-bis-(bromo-meth-yl)-2,2'-bipyridine with 1-methyl-imidazole. The main mol-ecule lies on an inversion center located at the mid-point of the C-C bond joining the two pyridine rings. The asymmetric unit therefore contains one half-mol-ecule and one hexa-fluoro-phosphate anion. The dihedral angle between the pyridine and imidazole rings is 76.93 (7)°. In the crystal, weak inter-molecular C-H⋯F hydrogen bonds contribute to the stabilization of the packing.

| S-EPMC3200939 | biostudies-literature

1,1'-Di-tert-butyl-2,2',3,3',4,4',5,5'-octa-ethyl-1,1'-bis-tannole.

Project description:The title compound, [Sn(2)(C(4)H(9))(2)(C(12)H(20))(2)], has two 1-stannacyclo-penta-diene skeletons related by inversion symmetry located at the mid-point of the Sn-Sn bond [2.7682 (2) Å]. Thus, the asymmetric unit comprises one half-mol-ecule. The planarity of the stannacyclo-penta-diene ring is illustrated by the dihedral angle of 0.3 (1)°, defined by the C(4) and C-Sn-C planes. To avoid steric repulsion, the two stannole rings are oriented in an anti fashion through the Sn-Sn bond. These structural features are similar to those of other bis-tannoles.

| S-EPMC3152095 | biostudies-literature

catena-Poly[[(5,5'-dimethyl-2,2'-bipyridine-?(2)N,N')cadmium]-di-?-bromido].

Project description:In the crystal of the title polymeric compound, [CdBr(2)(C(12)H(12)N(2))](n), the Cd(II) cation is located on a twofold rotation axis. The Cd(II) cation is six-coordinated in a distorted octa-hedral geometry formed by two N atoms from the 5,5'-dimethyl-2,2'-bipyridine ligand and four bridging Br(-) anions. The bridging function of the Br(-) anions leads to a polymeric chain running along the c axis.

| S-EPMC3379185 | biostudies-literature

catena-Poly[[(5,5'-dimethyl- 2,2'-bipyridine-?N,N')cadmium(II)]-di-?-chlorido].

Project description:The asymmetric unit of the title compound, [CdCl(2)(C(12)H(12)N(2))](n), contains one half-mol-ecule; a twofold rotation axis passes through the Cd atom. The Cd(II) atom is six-coordinated in a distorted octa-hedral configuration by two N atoms from 2,2'-bipyridine-5,5'-dimethyl and four bridging Cl atoms. The bridging function of the chloro atoms leads to a one-dimensional chain structure. There is a ?-? contact between the pyridine rings [centroid-centroid distance = 3.9807?(9)?Å].

| S-EPMC2959444 | biostudies-literature

Di-?-chlorido-bis-[(2,2'-bipyridine-5,5'-dicarb-oxy-lic acid-?(2)N,N')chloridocopper(II)] dimethyl-formamide tetra-solvate.

Project description:In the title compound, [Cu(2)Cl(4)(C(12)H(8)N(2)O(4))(2)]·4C(3)H(7)NO, which contains a chloride-bridged centrosymmetric Cu(II) dimer, the Cu(II) atom is in a distorted square-pyramidal 4 + 1 coordination geometry defined by the N atoms of the chelating 2,2'-bipyridine ligand, a terminal chloride and two bridging chloride ligands. Of the two independent dimethyl-formamide mol-ecules, one is hydrogen bonded to a single -COOH group, while one links two adjacent -COOH groups via a strong accepted O-H?O and a weak donated C(O)-H?O hydrogen bond. Two of these last mol-ecules and the two -COOH groups form a centrosymmetric hydrogen-bonded ring in which the CH=O and the -COOH groups by disorder adopt two alternate orientations in a 0.44:0.56 ratio. These hydrogen bonds link the Cu(II) complex mol-ecules and the dimethyl-formamide solvent mol-ecules into infinite chains along [-111]. Slipped ?-? stacking inter-actions between two centrosymmetric pyridine rings (centroid-centroid distance = 3.63?Å) contribute to the coherence of the structure along [0-11].

| S-EPMC3569178 | biostudies-literature

2,2'-Dimethyl-1,1'-[2,2-bis-(bromo-methyl)propane-1,3-di-yl]dibenzimidazole hemihydrate.

Project description:The title compound, C(21)H(22)Br(2)N(4)·0.5H(2)O, contains two benzimidazole groups which may provide two potential coordination nodes for the construction of metal-organic frameworks. The mean planes of the two imidazole groups are almost perpendicular, with a dihedral angle of 83.05 (2)°, and adjacent mol-ecules are linked into a one-dimensional chain by π-π stacking inter-actions between imidazole groups of different mol-ecules [centroid-to-centroid distances of 3.834 (2) and 3.522 (2) Å].

| S-EPMC3297910 | biostudies-literature

(5,5'-Dimethyl-2,2'-bipyridine)-iodido-trimethyl-platinum(IV).

Project description:In the title compound, [Pt(CH(3))(3)I(C(12)H(12)N(2))], the Pt(IV) atom is six-coordinated in a slightly distorted octa-hedral configuration with one CH(3) group and the I atom forming a near perpendicular axis relative to the square plane formed by the bipyridine ligand and the two remaining CH(3) groups. The CH(3) group trans to the I atom has a slightly elongated bond to Pt compared to the other CH(3) groups, indicating a difference in trans influence between iodine and the bipyridine ligand.

| S-EPMC3089208 | biostudies-literature

(5,5'-Dimethyl-2,2'-bipyridine-?N,N')diiodidomercury(II).

Project description:In the mol-ecule of the title compound, [HgI(2)(C(12)H(12)N(2))], the Hg(II) atom is four-coordinated in a distorted tetra-hedral configuration by two N atoms from 5,5'-dimethyl-2,2'-bipyridine and two I atoms. There is a ?-? contact between pyridine rings of adjacent molecules [centroid-centroid distance = 3.723?(5)?Å].

| S-EPMC2959332 | biostudies-literature

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