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Catena-Poly[[[diaqua-bis(2-methyl-6-oxo-1,6-dihydro-3,4'-bipyridine-5-carbo-nitrile)copper(II)]-μ-sulfato] tetra-hydrate].

ABSTRACT: In the title polymer, {[Cu(SO(4))(C(12)H(9)N(3)O)(2)(H(2)O)(2)]·4H(2)O}(n), both the metal center and the sulfate anion are located on a twofold axis. The Cu(II) ion is coordinated by two pyridyl N atoms from two symmetry-related organic ligands, two O atoms from two symmetry-related water mol-ecules, and two O atoms from two symmetry-related sulfate anions, resulting in a distorted octa-hedral geometry. The sulfate anions act as μ(2)-bridges and connect metal ions, forming a one-dimensional chain along the b axis. The three-dimensional crystal structure is established through inter-molecular N-H⋯O and O-H⋯O hydrogen bonds involving the organic ligands, sulfate anions, coordinated and uncoordinated water mol-ecules, and through π-π inter-acting 2-pyridone rings, with centroid-centroid separations of ca 3.96 Å and tilt angles of ca 2.62°.

SUBMITTER: Niu CY

PROVIDER: S-EPMC2959870 | biostudies-literature | 2008 Nov

REPOSITORIES: biostudies-literature

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catena-Poly[[[diaqua-bis(2-methyl-6-oxo-1,6-dihydro-3,4'-bipyridine-5-carbo-nitrile)copper(II)]-μ-sulfato] tetra-hydrate].

Niu Cao-Yuan CY Ning Ai-Min AM Feng Chao-Ling CL Dang Yu-Li YL Kou Chun-Hong CH

Acta crystallographica. Section E, Structure reports online 20081126 Pt 12

In the title polymer, {[Cu(SO(4))(C(12)H(9)N(3)O)(2)(H(2)O)(2)]·4H(2)O}(n), both the metal center and the sulfate anion are located on a twofold axis. The Cu(II) ion is coordinated by two pyridyl N atoms from two symmetry-related organic ligands, two O atoms from two symmetry-related water mol-ecules, and two O atoms from two symmetry-related sulfate anions, resulting in a distorted octa-hedral geometry. The sulfate anions act as μ(2)-bridges and connect metal ions, forming a one-dimensional cha ...[more]

PMID: 21581209

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catena-Poly[[[diaqua-bis(1H-indole-3-acetato-κO)cobalt(II)]-μ-4,4'-bipyridine-κN:N'] tetra-hydrate].

Project description:The 4,4'-bipyridine spacer in the title compound, [Co(C(10)H(8)NO(2))(2)(C(10)H(8)N(2))(H(2)O)(2)]·4H(2)O, links the diaqua-cobalt(II) dicarboxyl-ate units into a linear chain; the metal atom lies on a center of inversion in an octa-hedral environment. The coordinated and uncoordinated water mol-ecules inter-act through O-H⋯O hydrogen bonds to form a three-dimensional network.

| S-EPMC2961286 | biostudies-literature

1,3-Diphenyl-3,4-dihydro-benzo[b][1,6]naphthyridine.

Project description:The title compound, C(24)H(18)N(2), is the first structural example containing the 3,4-dihydro-benzo[b][1,6]naphthyridine fragment. It was synthesized from 2,4,6,8-tetra-phenyl-3,7-diaza-bicyclo-[3.3.1]nonan-9-one and was crystallized from a methanol-ethanol solution over two years as a racemate. The C=N double bond [1.2868 (15) Å] is bent significantly out of the plane of the aromatic bicyclic ring system [N-C-C-C = -157.63 (12)°] and out of the plane of the phenyl ring bonded at the 1-position [N-C-C-C = 41.15 (16)°].

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| S-EPMC2969423 | biostudies-literature

2-Amino-4-(3,4-dimeth-oxy-phen-yl)-5,6-dihydro-benzo[h]quinoline-3-carbo-nitrile-3-amino-1-(3,4-dimeth-oxy-phen-yl)-9,10-dihydro-phenanthrene-2,4-dicarbonitrile (1/19).

Project description:The asymmetric unit of the 1:19 title co-crystal of 2-amino-4-(3,4-dimeth-oxy-phen-yl)-5,6-dihydro-benzo[h]quinoline-3-carbo-nitrile and 3-amino-1-(3,4-dimeth-oxy-phen-yl)-9,10-dihydro-phenanthrene-2,4-dicarbonitrile, 0.05C(22)H(19)N(3)O(2)·0.95C(24)H(19)N(3)O(2), has the atoms of the fused-ring system and those of the amino, cyano and dimeth-oxy-phenyl substitutents overlapped. The fused-ring system is buckled owing to the ethyl-ene linkage in the central ring with the two flanking aromatic rings being twisted by 31.9?(1)°. The ring of the dimeth-oxy-phenyl substituent is twisted by 72.4?(1)° relative to the amino- and cyano-bearing aromatic ring. In the crystal, mol-ecules are linked by duplex amine N-H?O(meth-oxy) hydrogen bonds in a cyclic association [graph-set R(2) (2)(7)], generating a helical chain structure extending along [201].

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Synthesis, crystal structure and properties of tetra-kis-(pyridine-3-carbo-nitrile)-dithio-cyanatoiron(II) and of diaqua-bis-(pyridine-3-carbo-nitrile)-di-thio-cyanatoiron(II) pyridine-3-carbo-nitrile monosolvate.

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catena-Poly[[diaqua-(1H-imidazo[4,5-f][1,10]phenanthroline)cobalt(II)]-μ-sulfato].

Project description:The Co(II) ion in the title complex, [Co(SO(4))(C(13)H(8)N(4))(H(2)O)(2)](n), has a slightly distorted octa-hedral coordination environment formed by two O atoms from two symmetry-related bridging sulfate ligands, two N atoms from a bis-chelating 1H-imidazo[4,5-f][1,10]phenanthroline (IPL) ligand and two O atoms from coordinated water mol-ecules. The bridging sulfate ligands connect Co(II) ions to form a one-dimensional chain along the b-axis direction. In the crystal structure, inter-molecular O-H⋯O, O-H⋯N and N-H⋯O hydrogen bonds link the chains into a three-dimensional network.

| S-EPMC2969714 | biostudies-literature

catena-Poly[[diaqua-bis(diphenyl-acetato)-zinc(II)]-μ-4,4'-bipyridine].

Project description:In the title compound, [Zn(C(14)H(11)O(2))(2)(C(10)H(8)N(2))(H(2)O)(2)](n), the Zn(II) ion lies on a crystallographic inversion center and is in a slightly distorted octahedral coordination enviroment. 4,4'-Bipyridine ligands act as bridging ligands, connecting Zn(II) ions into a chain along the b-axis direction. In the crystal structure, these chains are linked by inter-molecular O-H⋯O hydrogen bonds to form a two-dimensional network parallel to the ab plane.

| S-EPMC2968569 | biostudies-literature

catena-Poly[[diaqua-bis-(3-methyl-pyridine-κN)cobalt(II)]-μ-sulfato-κO:O'].

Project description:The environment of the Co(II) ion in the title compound, [Co(SO(4))(C(6)H(7)N)(2)(H(2)O)(2)](n), exhibits an octa-hedral configuration with the two 3-methyl-pyridine ligands lying in cis positions with respect to each other and trans to the two coordinated water mol-ecules. The axial positions are occupied by O atoms of the sulfate ions. Co and S atoms occupy special positions (twofold axis, Wyckoff position 4c). Neighboring Co(II) ions are covalently connected with each other through the sulfate ions, thus creating infinite polymeric chains that run along the c axis. The water mol-ecules are connected with neighboring sulfate ions through strong O-H⋯O hydrogen bonds. Intra-molecular hydrogen bonds parallel to the propagation direction of the chains stabilize the polymeric chains, and inter-molecular hydrogen bonds between chains connect neighboring chains with each other, thus leading to polymeric double chains.

| S-EPMC3212146 | biostudies-literature

catena-Poly[diquinolinium [[diaqua-cobaltate(II)]-?-cyclo-tetra-phosphato] hexa-hydrate].

Project description:The cyclo-tetra-phosphate anion, [P(4)O(12)](4-), forms the title complex with cobalt(II) and quinolinium, {(C(9)H(8)N)(2)[Co(P(4)O(12))(H(2)O)(2)]·6H(2)O}(n). In the complex anion, the Co(II) ion, lying on an inversion center, is surrounded by four phosphate O atoms and two water mol-ecules in a slightly distorted octa-hedral geometry. The crystal structure consists of anionic ribbons of formula {[Co(P(4)O(12))(H(2)O)(2)](2-)}(n) extending along [100]. A network of O-H?O, N-H?O and C-H?O hydrogen bonds consolidates the crystal packing.

| S-EPMC2979730 | biostudies-literature

catena-Poly[[tetra-aqua-(?-4,4'-bipyridine-?N:N')zinc(II)] fumarate tetra-hydrate].

Project description:In the title compound, {[Zn(C(10)H(8)N(2))(H(2)O)(4)](C(4)H(2)O(4))·4H(2)O}(n), the Zn(II) atom is coordinated by two N atoms from two ?-4,4'-bipyridine ligands and four water mol-ecules in a distorted octa-hedral geometry. The coordination unit is extended through the Zn-N bond, leading to a one-dimensional cationic chain. A twofold rotation axis passes through the Zn atom and along the axis of the 4,4'-bipyridine ligand. Each uncoordinated water mol-ecule acts as both hydrogen-bond donor and acceptor. A three-dimensional network is constructed through hydrogen bonds involving water mol-ecules and fumarate dianions.

| S-EPMC2961133 | biostudies-other

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