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Bis(4'-chloro-2,2':6',2''-terpyridine-κN,N',N'')iron(II) dinitrate dihydrate.

ABSTRACT: The title complex, [Fe(C(15)H(10)ClN(3))(2)](NO(3))(2)·2H(2)O, has a six-coordinate iron(II) center balanced by two nitrate anions. The Fe atom lies on a twofold rotation axis. The complex exhibits an octa-hedral coordination configuration, where the dihedral angle between the two planar tridentate ligands is 92.4 (1)°. The crystal structure involves O-H⋯O hydrogen bonds.

SUBMITTER: You W

PROVIDER: S-EPMC2914957 | biostudies-literature |

REPOSITORIES: biostudies-literature

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?-Succinato-bis-[aqua-(2,2':6',2''-terpyridine)copper(II)] dinitrate dihydrate.

Project description:The title compound, [Cu(2)(C(4)H(4)O(4))(C(15)H(11)N(3))(2)(H(2)O)(2)](NO(3))(2)·2H(2)O, was synthesized under hydro-thermal conditions. The dinuclear copper complex is located on a crystallographic inversion centre. The Cu(II) ion is penta-coordinated in a tetra-gonal-pyramidal geometry, with one O atom of a succinate dianion and three N atoms of a 2,2':6',2''-terpyridine ligand occupying the basal plane, and a water O atom located at the apical site. In the crystal structure, O-H?O hydrogen bonding links the mol-ecules into a chain parallel to the a axis.

| S-EPMC2983631 | biostudies-literature

Bis(4'-chloro-2,2':6',2''-terpyridine-?(3)N,N',N'')ruthenium(II) dichloride dihydrate.

Project description:In the cation of the title compound, [Ru(C(15)H(10)ClN(3))(2)]Cl(2)·2H(2)O, the metal atom exhibits a distorted octa-hedral coordination geometry provided by the N atoms of two tridentate terpyridine ligands. The ligands are approximately planar [maximum deviation = 0.156?(5)?Å] and form a dihedral angle of 87.0?(3)°. In the crystal, the cations, anions and water mol-ecules are linked into a three-dimensional network by C-H?Cl, C-H?O and O-H?Cl hydrogen bonds.

| S-EPMC3379109 | biostudies-literature

[2,6-Bis(5-chloro-pyrimidin-2-yl-κN)pyri-dine-κN](2,2':6',2''-terpyridine-κN,N',N'')ruthenium(II) bis-(hexa-fluoridophosphate) acetonitrile disolvate.

Project description:In the title compound, [Ru(C(13)H(7)Cl(2)N(5))(C(15)H(11)N(3))](PF(6))(2)·2CH(3)CN, the Ru(II) atom is coordinated in a distorted octa-hedral geometry by a tridentate 2,2':6',2''-terpyridine ligand and a tridentate 2,6-bis-(5-chloro-pyrimidin-2-yl)pyridine ligand. Least-squares mean-plane distortions of only 1.72 (2) and 2.91 (2)° of the pyrimidyl rings with respect to the central pyridine are observed for the bis-(pyrimid-yl)pyridine-based tridentate ligand, while the distal pyridyl rings of terpyridine twist by 13.43 (7) and 4.68 (9)° away from the central pyridine ring.

| S-EPMC2960288 | biostudies-literature

μ-4,4'-Bipyridine-κN:N'-bis-[aqua-(4,4'-bi-pyridine-κN)(l-valinato-κN,O)copper(II)] dinitrate dihydrate.

Project description:In the title dinuclear complex, [Cu(2)(C(5)H(10)NO(2))(2)(C(10)H(8)N(2))(3)(H(2)O)(2)](NO(3))(2)·2H(2)O, each of the two l-valinate anions chelates a Cu(II) center through the amino N and carboxyl-ate O atom, forming a five-membered ring. A 4,4'-bipyridine mol-ecule bridges two water-coordinated Cu atoms, each of which is connected to another 4,4'-bipyridine, giving rise to a square-pyramidal coordination geometry for the Cu(II) centers. The dinuclear dications, nitrate anions and uncoord-inated water mol-ecules are linked into a two-dimensional structure.

| S-EPMC2960237 | biostudies-literature

Bis(μ-2,2'-oxydibenzoato-κO,O':O'',O''')bis-[(4,4'-dimethyl-2,2'-bipyridine-κN,N')zinc(II)] dihydrate.

Project description:In the title compound, [Zn(2)(C(14)H(8)O(5))(2)(C(12)H(12)N(2))(2)]·2H(2)O, the Zn(II) atom exhibits a distorted octa-hedral coordination geometry, defined by two N atoms from one 4,4'-dimethyl-2,2'-bipyridine ligand and four O atoms from two bridging 2,2'-oxydibenzoate ligands. The mol-ecule is a centrosymmetric dimer. π-π Stacking inter-actions are observed between the 4,4'-dimethyl-2,2'-bipyridine ligands, with a centroid-centroid distance of 3.649 (2) Å.

| S-EPMC2961073 | biostudies-literature

Tetra-aqua-bis-(pyridine-κN)nickel(II) dinitrate.

Project description:In the title compound, [Ni(C(5)H(5)N)(2)(H(2)O)(4)](NO(3))(2), the Ni(II) ion is coordinated by two N-bonded pyridine ligands and four water mol-ecules in an octa-hedral coordination mode. The asymmetric unit consists of one Ni(II) ion located on an inversion center, as well as one pyridine ligand, one nitrate anion and two water mol-ecules in general positions. In the crystal structure, the discrete complex cations and nitrate anions are connected by O-H⋯O and C-H⋯O hydrogen bonds.

| S-EPMC3006910 | biostudies-literature

Bis(μ-pyridine-2,5-dicarboxyl-ato)-κN,O:O;κO:N,O-bis-[aqua-(2,2'-bipyridine-κN,N')cobalt(II)] dihydrate.

Project description:In the centrosymmetric title compound, [Co(2)(C(7)H(3)NO(4))(2)(C(10)H(8)N(2))(2)(H(2)O)(2)]·2H(2)O, the two Co(II) cations are bridged by pairs of pyridine-2,5-dicarboxyl-ate anions across an inversion center. Besides two pyridine-2,5-dicarboxyl-ate anions, one bidentate 2,2'-bipyridine and one water mol-ecule coordinate to the Co cation, completing a distorted octa-hedral coordination geometry. Within the dinuclear mol-ecule, π-π stacking occurs between parallel pyridine rings with centroid-centroid distances of 3.802 (2) Å. The crystal structure contains extensive O-H⋯O and weak C-H⋯O hydrogen bonds and C-H⋯π inter-actions.

| S-EPMC3051640 | biostudies-literature

cis-Aqua-bis(2,2'-bipyridine-κN,N')fluoridochromium(III) bis-(perchlorate) dihydrate.

Project description:The title mixed aqua-fluoride complex, [CrF(C(10)H(8)N(2))(2)(H(2)O)](ClO(4))(2)·2H(2)O, has been synthesized by aqua-tion of the corresponding difluoride complex using lanthan-ide(III) ions as F(-) acceptors. The complex crystallizes with a Cr(III) ion at the center of a distorted octa-hedral coordination polyhedron with a cis arrangement of ligands. The crystal packing shows a hydrogen-bonding pattern involving water mol-ecules, the coordinated F atom and the perchlorate anions.

| S-EPMC2979974 | biostudies-literature

Bis(2,2':6',2''-terpyridine)-ruthenium(II) bis-(perchlorate) hemihydrate.

Project description:The asymmetric unit of the title compound, [Ru(C(15)H(11)N(3))(2)](ClO(4))(2)·0.5H(2)O, contains one ruthenium-terpiridine complex cation, two perchlorate anions and one half-mol-ecule of water. Face-to-face and face-to-edge ?-stacking inter-actions between terpyridine units [centroid-centroid distances = 3.793?(2) and 3.801?(2)? Å] stabilize the crystal lattice The partially occupied water mol-ecule inter-acts with two perchlorate ions via O-H?O hydrogen bonds. In the crystal lattice, the complex cations, perchlorate ion-water pairs and the second perchlorate anions are arranged into columns along b direction.

| S-EPMC3515152 | biostudies-literature

Bis(2,2':6',2''-terpyridine)cobalt(II) bis-(tricyano-methanide).

Project description:The title complex, [Co(C(15)H(11)N(3))(2)](C(4)N(3))(2), is built up from discrete [Co(terpy)(2)](2+) cations (terpy is 2,2':6',2''-terpyridine) and [C(CN)(3)](-) anions. In the cation, the Co(II) atom is coordinated by two terpy mol-ecules, giving a distorted octa-hedral geometry. The tricyano-methanide anions are not directly coordinated to the Co(II) atom, but some weak C-H⋯N hydrogen bonds involving the terminal N atoms of the tricyaomethanide ions and the terpyridine H atoms link anions and cations building a three-dimensional network.

| S-EPMC2968836 | biostudies-literature

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