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Tetra-chlorido(2,3-di-2-pyridylpyrazine-κN,N)platinum(IV).

ABSTRACT: In the title complex, [PtCl(4)(C(14)H(10)N(4))], the Pt(IV) atom is six-coordinated in an octa-hedral configuration by two N atoms from one 2,3-di-2-pyridylpyrazine ligand and four terminal Cl atoms. Inter-molecular C-H⋯Cl and C-H⋯N hydrogen bonds stabilize the crystal structure.

SUBMITTER: Delir Kheirollahi Nezhad P

PROVIDER: S-EPMC2960910 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Tetra(chlorido/iodido)(1,10-phenanthroline)platinum(IV) hemi[di(chlorine/iodine)].

Project description:The asymmetric unit of the title compound, [PtCl(3.66)I(0.34)(C(12)H(8)N(2))]·0.5(Cl(0.13)I(1.87)), contains a neutral Pt(IV) complex and one half of a halogen molecule. The Pt(IV) ion is six-coordinated in a distorted octa-hedral environment by two N atoms of the 1,10-phenanthroline ligand and Cl or I atoms. The refinement of the structure and the EDX analysis indicate that the compound is a solid solution in which there is some substitution of Cl for I and vice versa. The chemical formula of the pure state of the compound would have been [PtCl(4)(C(12)H(8)N(2))]·0.5I(2). In the analysed crystal, two Cl atoms are partially (ca 25% and 9%) replaced by I atoms, and the I(2) mol-ecule has a minor component modelled as ICl. As a result of the disorder, the different trans effects of the N and Cl/I atoms are not distinct. The complex displays inter-molecular ?-? inter-actions between the six-membered rings, with a centroid-centroid distance of 3.771?(4)?Å. There are also weak intra-molecular C-H?Cl hydrogen bonds.

| S-EPMC2969087 | biostudies-other

Tetra-chlorido(1,10-phenanthroline-?N,N')platinum(IV) monohydrate.

Project description:In the title complex, [PtCl(4)(C(12)H(8)N(2))]·H(2)O, the Pt(4+) ion is six-coordinated in a distorted octa-hedral environment by two N atoms of a 1,10-phenanthroline ligand and by four Cl atoms. As a result of the different trans effects of the N and Cl atoms, the Pt-Cl bonds trans to the N atom are slightly shorter than those trans to the Cl atom. The compound displays inter-molecular ?-? inter-actions between the six-membered rings, with a centroid-centroid distance of 3.834?Å. There are also weak intra-molecular C-H?Cl hydrogen bonds. According to the IR spectrum, solvent water was present in the crystal, but owing to the high thermal motion of the uncoordinated O atom, the H atoms could not be detected.

| S-EPMC2968294 | biostudies-literature

Tetra-chlorido(1,10-phenanthroline-?N,N')platinum(IV) acetonitrile hemisolvate.

Project description:The asymmetric unit of the title compound, [PtCl(4)(C(12)H(8)N(2))]·0.5CH(3)CN, contains two crystallographically independent Pt(IV) complexes with very similar geometry and one solvent mol-ecule. In the complexes, each Pt(IV) ion is six-coordinated in a distorted octa-hedral environment by two N atoms of the 1,10-phenanthroline ligand and four Cl atoms. Because of the different trans effects of the N and Cl atoms, the Pt-Cl bonds trans to the N atom are slightly shorter than those trans to the Cl atom. The compound displays numerous inter-molecular ?-? inter-actions between six-membered rings, with a shortest centroid-to-centroid distance of 3.654?Å. There are also weak intra- and inter-molecular C-H?Cl hydrogen bonds.

| S-EPMC2968349 | biostudies-literature

1-(2,3-Di-methyl-phen-yl)piperazine-1,4-diium tetra-chlorido-cuprate(II).

Project description:In the title salt, (C12H20N2)[CuCl4], the Cu(II) atom occupies a general position in a flattened tetra-hedral environment by Cl ligands, characterized by Cl-Cu-Cl angles of 134.04?(3) and 137.18?(4)°. The six-membered piperazinediium ring adopts a chair conformation. The organic cation and inorganic anion inter-act through N-H?Cl and C-H?Cl hydrogen bonds, forming a three-dimensional network.

| S-EPMC3884381 | biostudies-literature

Tetra-chlorido(4,4'-dimethyl-2,2'-bipyridine-?N,N')platinum(IV).

Project description:The asymmetric unit of the title compound, [PtCl(4)(C(12)H(12)N(2))], contains one half-mol-ecule; a twofold rotation axis passes through the Pt atom and the mid-point of the C-C bond linking the two rings. The Pt(IV) atom is six-coordinated in an octa-hedral configuration by two N atoms of the 4,4'-dimethyl-2,2'-bipyridine ligand and four terminal Cl atoms. In the crystal structure, there are weak ?-? inter-actions between pyridine rings, with a centroid-centroid distance of 4.365?(3)?Å.

| S-EPMC2961848 | biostudies-other

Di-?-chlorido-bis-[diacetonitrile-chlorido-oxidovanadium(IV)].

Project description:The title compound, [V(2)Cl(4)O(2)(CH(3)CN)(4)], is a centrosymmetric dinuclear V(IV) complex associated with four mol-ecules of acetonitrile. The coordination around both V(IV) atoms is essentially square-planar, involving three Cl atoms and one O atom [maximum deviation = 0.017?(3)?Å for the O atom]. The augmented octahedral coordination of the metal atom is completed by the N atoms of acetonitrile ligands. The V(IV) atoms are linked by two Cl atoms, acting as bridging atoms. The crystal studied was a non-merohedral twin with a ratio of the two twin components of 0.8200?(3):0.1800?(3). Although Cl and O atoms are present as potential acceptors in the title compound, no hydrogen bonds were observed in the crystal structure.

| S-EPMC3201240 | biostudies-literature

Di-μ-chlorido-bis-[chlorido(1,10-phenanthroline-κN,N')zinc(II)].

Project description:In the crystal structure of the title complex, [Zn(2)Cl(4)(C(12)H(8)N(2))(2)], each of the two five-coordinated Zn(II) atoms displays a strongly distorted trigonal-bipyramidal geometry defined by two N atoms from the chelate ligand and by one terminal and two bridging chloride anions. The crystal structure is stabilized by C-H⋯Cl inter-actions. There is inter-molecular π-π stacking between adjacent phenanthroline ligands, with a centroid-centroid distance of 3.151 (3) Å.

| S-EPMC2977612 | biostudies-literature

Poly[[diaqua-tetra-kis-(μ(2)-benzene-1,4-di-carbonitrile-κN:N')iron(II)] bis-[tetra-chlorido-ferrate(III)] nitro-methane tetra-solvate].

Project description:In the title compound, {[Fe(II)(C(8)H(4)N(2))(2)(H(2)O)(2)][Fe(III)Cl(4)](2)·4CH(3)NO(2)}(n), the Fe(II) and Fe(III) ions are hexa- and tetra-coordinated, respectively. Each unique benzene-1,4-dicarbonitrile mol-ecule lies across a crystallographic inversion centre and bridges two Fe(II) ions (each situated on an inversion centre), generating two-dimensional (4,4) square grid layers. The tetra-chloridoferrate(III) anions and nitro-methane solvent mol-ecules lie between the square grid layers and are further link to the adjacent layers into a three-dimensional supra-molecular structure through O-H⋯Cl and O-H⋯O hydrogen bonds.

| S-EPMC3274928 | biostudies-literature

Tetra-butyl-ammonium butyl-tetra-chlorido-stannate(IV).

Project description:In the title compound, [N(C4H9)4][Sn(C4H9)Cl4], the Sn(IV) atom of the stannate anion has a trigonal-bipyramidal coordination sphere by two Cl atoms and one butyl chain in the equatorial plane and by two Cl atoms in the apical positions. Two of the four butyl chains of the tetra-butyl-ammonium cation are partially disordered, each with refined site occupancies of 0.691?(6):0.309?(6). Weak C-H?Cl hydrogen-bonding inter-actions help to consolidate the crystal packing, as well as a short Cl?Cl inter-action of 3.295?(2)?Å.

| S-EPMC3790365 | biostudies-literature

Di-μ-chlorido-bis-[dichlorido(3,3',5,5'-tetra-methyl-4,4'-bipyrazol-1-ium-κN)copper(II)] dihydrate.

Project description:The structure of the centrosymmetric title compound, [Cu(2)Cl(6)(C(10)H(15)N(4))(2)]·2H(2)O, consists of a dimeric [{(HMe(4)bpz)CuCl(3)}(2)] unit (HMe(4)bpz is 3,3',5,5'-tetra-methyl-4,4'-bipyrazol-1-ium) with two solvent water molecules. Each [HMe(4)bpz](+) cation is bonded to a CuCl(3) unit through a Cu-N dative bond, effectively making square-planar geometry at the Cu atom. Two of these units then undergo a face-to-face dimerization so that the Cu atoms have a Jahn-Teller distorted square-pyramidal geometry with three chlorides and an N atom in the basal plane and one chloride weakly bound in the apical position. Several N-H⋯Cl, O-H⋯Cl and N-H⋯O hydrogen bonds form a three-dimensional network.

| S-EPMC2961969 | biostudies-literature

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