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Poly[[(μ2-4,4'-bipyridyl-κ(2) N:N')bis-{μ2-N-[2-(2-hy-droxy-benzo-yl)carbamo-thio-yl]acetamidato-κ(4) O,N,O':S}bis-(nitrato-κ(2) O,O')dicadmium] di-methyl-formamide tetra-solvate].

ABSTRACT: The asymmetric unit of the title complex, {[Cd2(C10H10N3O3S)2(C10H8N2)(NO3)2]·4C3H7NO} n , consists of one Cd(II) cation, one N-[2-(2-hy-droxy-benzo-yl)carbamo-thio-yl]acetamidate ligand, half a 4,4'-bipyridyl ligand, one coordinating nitrate anion and two di-methyl-formamide solvent mol-ecules of crystallization. The bipyridine ligand is completed by inversion symmetry. The metal cation exhibits a distorted penta-gonal-bipyramidal coordination geometry provided by two O and one N atoms of the thio-semicarbazide ligand, two O atoms of the nitrate anion, one S atom of a neighbouring thio-semicarbazide ligand and one 4,4'-bi-pyridine N atom. The bridging role of the thio-semicarbazide ligand through the S atom leads to centrosymmetric binuclear units, which are further linked by 4,4'-bi-pyridine units, forming polymeric chains extending along the b-axis direction. An intra-molecular N-H⋯O hydrogen bond occurs. The crystal structure also features N-H⋯O and O-H⋯O hydrogen bonds, leading to the formation of a three-dimensional network.

SUBMITTER: You MH

PROVIDER: S-EPMC3884987 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Poly[diaqua-bis-(nitrato-?²O,O')bis-(1,10-phenanthroline-?²N,N')-??-succinato-dicadmium].

Project description:In the title coordination polymer, [Cd?(C?H?O?)(NO?)?(C??H?N?)?(H?O)?](n), the Cd(II) ion is seven-coordinated within a distorted penta-gonal-bipyramidal O?N? environment. The succinate anions, located on an inversion centre, adopt a bis-monodentate bridging mode, leading to the formation of rods along [100]. The rods are connected by O-H?O hydrogen bonds between the coordinating water mol-ecules and nitrate O atoms of adjacent rods; the same type of hydrogen bonds are also observed between water and carboxyl-ate O atoms within the rods. ?-? stacking inter-actions with a minimum plane-to-plane separation of 3.462?(2)?Å occur between phenanthroline ligands.

| S-EPMC3393172 | biostudies-literature

Crystal structure of bis-{μ2-3-(pyridin-2-yl)-5-[(1,2,4-triazol-1-yl)meth-yl]-1,2,4-triazolato}bis-[aqua-nitrato-copper(II)] dihydrate.

Project description:The structure of the dinuclear title complex, [Cu2(C10H8N7)2(NO3)2(H2O)2]·2H2O, consists of centrosymmetric dimeric units with a copper-copper separation of 4.0408 (3) Å. The Cu(II) ions in the dimer display a distorted octa-hedral coordination geometry and are bridged by two triazole rings, forming an approximately planar Cu2N4 core (r.m.s. deviation = 0.049 Å). In the crystal, O-H⋯O, O-H⋯N and C-H⋯O hydrogen bonds and π-π inter-actions link the mol-ecules into a three-dimensional network.

| S-EPMC4910315 | biostudies-literature

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Project description:In the dinuclear title compound, [Zn(2)(C(14)H(12)N(3)O(2)S)(2)Cl(2)]·4C(3)H(7)NO, the two monodeprotonated Schiff base ligands N,O,S:O-chelate to Zn atoms. The formally negatively charged O atom involved in chelation also serves as a bridge. The O, O', N and S atoms comprise a square, and the Cl atom the apex of a square pyramid surrounding each metal atom. The solvate dimethyl-formamide mol-ecules, one of which is disordered over two positions in a 3:1 ratio, are hydrogen bonded to the dinuclear mol-ecule.

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Bis(2,2'-bipyridyl-?N,N')(nitrato-?O,O')(trifluoro-acetato-?O)cadmium(II).

Project description:In the title complex, [Cd(C(2)F(3)O(2))(NO(3))(C(10)H(8)N(2))(2)], the Cd(II) ion is hepta-coordinated by two chelating 2,2'-bipyridyl ligands [Cd?N 2.370?(6)-2.416?(6)?Å], one carboxyl-ate O atom [Cd?O 2.290?(6)?Å] from the trifluoro-acetate ligand and two O atoms [Cd?O 2.386?(6), 2.633?(6)?Å] from a chelating nitrate anion. The trifluoro-methyl fragment is rotationally disordered between two orientations in a 0.640?(7):0.360?(7) ratio. In the crystal, weak inter-molecular C-H?O hydrogen bonds contribute to the crystal packing stability.

| S-EPMC2969603 | biostudies-literature

Bis(μ-nitrato-κ(2) O:O)bis-{[1,2-bis-(diiso-propyl-phosphan-yl)-1,2-dicarba-closo-dodeca-borane-κ(2) P,P']silver(I)} di-chloro-methane disolvate.

Project description:The title compound, [Ag2(NO3)2(C14H38B10P2)2]·2CH2Cl2, was synthesized by the reaction of 1,2-bis-(diiso-propyl-phosphan-yl)-1,2-dicarba-closo-dodeca-borane with AgNO3. The resulting dinuclear molecule has crystallographically imposed inversion symmetry. The diiso-propyl-phosphanyl-closo-carborane ligand is coordin-ated in a bidentate manner to the Ag(I) atom through the two P atoms. The distorted tetra-hedral coordination of the metal is completed by two O atoms of two bridging nitrate anions. The separation between the two Ag(I) atoms is 3.8913 (5) Å. C-H⋯O hydrogen bonds are observed involving the dichloromethane solvent molecule and the nitrate anion.

| S-EPMC3998584 | biostudies-literature

Bis(N-methyl-N-phenyl-carbamo-yl)disulfane.

Project description:The title compound, C(16)H(16)N(2)O(2)S(2), has been synthesized by several different high-yield routes, and has been encountered as a co-product in a number of reaction pathways, ever since it became of inter-est to our research program over 30 years ago. We now confirm the proposed mol-ecular structure in which the mol-ecule exhibits a twofold axis of symmetry through the mid-point of the S-S bond and the two planes defined by the (carbamo-yl)sulfenyl moieties are essentially perpendicular to each other [dihedral angle = 81.55 (14)°].

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Poly[[di-aqua-deca-μ2-cyanido-κ(20) C:N-hexa-cyanido-κ(6) C-bis-(μ2-5-methyl-pyrimidine-κ(2) N:N')bis-(5-methyl-pyrimidine-κN)tricopper(II)ditungstate(V)] dihydrate].

Project description:In the title complex, {[Cu3[W(CN)8]2(C5H6N2)4(H2O)2]·2H2O} n , the coordination polyhedron of the eight-coordinated W(V) atom is a bicapped trigonal prism, in which five CN groups are bridged to Cu(II) ions, and the other three CN groups are terminally bound. Two of the Cu(II) ions lie on a centre of inversion and each of the three independent Cu(II) cations is pseudo-octahedrally coordinated. In the crystal structure, cyanido-bridged-Cu-W-Cu layers are linked by pillars involving the third independent Cu(II) ion, generating a three-dimensional network with non-coordinating water mol-ecules and 5-methyl-pyrimidine mol-ecules. O-H⋯O and O-H⋯N hydrogen bonds involve the coordinating and non-coordin-ating water mol-ecules, the CN groups and the 5-methyl-pyrimidine mol-ecules.

| S-EPMC3998256 | biostudies-literature

Bis(2,2'-bipyridyl-κ(2) N,N')(sulfato-κ(2) O,O')nickel(II) 2.5-hydrate.

Project description:The title compound, [Ni(SO4)(C10H8N2)2]·2.5H2O, is a nickel(II) complex with a distorted octa-hedral coordination geometry. The Ni(II) atom is bonded by two O atoms of the bidentate chelating sulfate ligand and the four N atoms of two chelating 2,2'-bi-pyridine ligands. The Ni-N bond lengths range from 2.059 (3) to 2.075 (3) Å and the Ni-O bond lengths are 2.098 (3) and 2.123 (3) Å. The bipyridyl ligands are both close to planar (r.m.s. deviations of 0.254 and 0.0572 Å) and are almost orthogonal, making a dihedral angle of 82.77 (1)°. In the crystal, the complex and water mol-ecules are connected by O-H⋯O hydrogen bonds. Inter-estingly, six water mol-ecules form a chain linking two complex mol-ecules via sulfate O atoms. There are also stacking inter-actions between the aromatic rings of neighbouring 2,2'-bi-pyridine ligands with shortest non-covalent contacts of 3.268 (6), 3.393 (6) and 3.435 (5) Å. One of the three unique water molecules shows half-occupation.

| S-EPMC3684905 | biostudies-literature

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