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Bis(tribenzyl-ammonium) tetra-chloridoaurate(III) chloride.

ABSTRACT: In the title compound, (C(21)H(22)N)(2)[AuCl(4)]Cl, the Au(III) atom adopts a square-planar coordination geometry defined by four chloride ions. In the crystal structure, inter-molecular N-H⋯Cl hydrogen bonds link the organic cations and the uncoordinated chloride ion.

SUBMITTER: Fazaeli Y

PROVIDER: S-EPMC2979940 | biostudies-literature |

REPOSITORIES: biostudies-literature

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1,4,10,13-Tetra-oxa-7,16-diazo-niacyclo-octadecane bis-[tetra-chloridoaurate(III)] dihydrate.

Project description:The asymmetric unit of the title compound, (C(12)H(28)N(2)O(4))[AuCl(4)](2)·2H(2)O, contains one half-cation, one anion and one water mol-ecule; the cation is centrosymmetric. The Au ion has a square-planar coordination. In the crystal structure, intra-molecular N-H?O and O-H?O, and inter-molecular N-H?O, O-H?Cl and N-H?Cl hydrogen bonds link the ions and water mol-ecules, forming a supra-molecular structure.

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Project description:In the cation of the title compound, [Au(C(7)H(9)N)(2)][AuCl(4)], the Au(I) atom is two-coordinated in a linear arrangement by two N atoms from two 2,6-dimethyl-pyridine ligands. In the anion, the Au(III) atom has a virtually square-planar coordination geometry. The Au atoms both are located on centers of inversion. The crystal structure involves inter-molecular C-H?Cl hydrogen bonds.

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6,6'-Dimethyl-2,2'-bipyridin-1-ium tetra-chloridoaurate(III).

Project description:In the anion of the title compound, (C(12)H(13)N(2))[AuCl(4)], the Au(III) atom has a square-planar coordination. In the crystal, inter-molecular N-H?Cl and C-H?Cl hydrogen bonds and ?-? contacts between the pyridine rings [centroid-centroid distance = 3.5419?(19)?Å] result in the formation of a supra-molecular structure.

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Dichlorido(4,7-diphenyl-1,10-phenanthroline-?N,N')gold(III) tetra-chloridoaurate(III).

Project description:In the cation of the title compound, [AuCl(2)(C(24)H(16)N(2))][AuCl(4)], the Au(III) atom is four-coordinated in a distorted square-planar configuration by two N atoms from a 4,7-diphenyl-1,10-phenanthroline ligand and two terminal Cl atoms. In the anion, the Au(III) atom has a square-planar coordination. In the crystal structure, intra- and inter-molecular C-H?Cl hydrogen bonds are found.

| S-EPMC2960497 | biostudies-literature

Bis[4-(dimethyl-amino)-pyridinium] octa-aqua-chloridolanthanum(III) tetra-chloride trihydrate.

Project description:The title organic-inorganic salt, (C(7)H(11)N(2))(2)[LaCl(H(2)O)(8)]Cl(4)·3H(2)O, consists of two 4-(dimethyl-amino)-pyridinium and one [La(H(2)O)(8)Cl](2+) cations, four chloride anions and three solvent water mol-ecules. In the crystal, the various units are connected by N-H⋯Cl, O-H⋯Cl, O-H⋯O and N-H⋯O hydrogen bonds, forming a network of alternating organic and inorganic layers. The 4-(dimethyl-amino)-pyridinium cations stack along the c axis, while the inorganic layers lie parallel to the ac plane. The chloride anions are located between these entities, forming hydrogen bonds with the NH atom of the pyridinium ions and the water mol-ecules. There are also C-H⋯Cl hydrogen bonds present involving one of the 4-(dimethyl-amino)-pyridinium cations, resulting in the formation of a three-dimensional supra-molecular architecture.

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A polymorph of tetra-ethyl-ammonium chloride.

Project description:The structure of the title compound, C(8)H(20)N(+)·Cl(-), is compared with a polymorph that was described earlier in the same space group. Differences in the conformations of the ethyl groups of the cation exist between the polymorphs. This study is given here in order to provide additional unit-cell data for use in qualitative identification of crystalline samples obtained in syntheses in which Et(4)N(+)·Cl(-) is either used or generated.

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Project description:In the anion of the title compound, (C(14)H(11)N(4))[AuCl(4)], the Au(III) atom has an almost perfect square-planar coordination. In the crystal structure, an intra-molecular N-H?N and intermolecular C-H?Cl hydrogen bonds are observed. In addition, there is also a ring-metal inter-action between the pyrazine ring and the Au(III) atom; the distance between the centroid of the pyrazine ring and the Au(III) atom is 3.628?(2)?Å.

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Bis(tetra-methyl-ammonium) oxalate monohydrate.

Project description:In the crystal structure of the title hydrated salt, 2C(4)H(12)N(+)·C(2)O(4) (2-)·H(2)O, the two independent cations, the anion and the water mol-ecule all lie on special positions of m site symmetry. In both cations, the mirror plane passes through the nitrogen atom and two methyl groups; in the anion, the mirror plane passes through two carbon and two oxygen atoms. The anions and water mol-ecules inter-act by O-H?O hydrogen bonding, forming a chain running along the b axis.

| S-EPMC2971246 | biostudies-literature

Bis(diisopropyl-ammonium) tetra-chloridocuprate(II).

Project description:In the title mol-ecular salt, (C(6)H(16)N)(2)[CuCl(4)], the Cu(II) ion adopts an extremely distorted tetra-hedral coordination geometry. All the ammonium H atoms are involved in N-H?Cl hydrogen bonds, which serve to link the cations and anions into chains propagating along the c-axis direction.

| S-EPMC3297241 | biostudies-literature

Di-μ-oxido-bis-[(1,4,8,11-tetra-aza-cyclo-tetra-decane-κN,N',N'',N''')dimangan-ese(III,IV)] bis-(tetra-phenyl-borate) chloride acetonitrile disolvate.

Project description:The title compound, [Mn(2)O(2)(C(10)H(24)N(4))(2)](C(24)H(20)B)(2)Cl·2CH(3)CN, is a mixed-valent Mn(III)/Mn(IV) oxide-bridged mangan-ese dimer with one chloride and two tetra-phenyl-borate counter-anions. There are two non-coordinated mol-ecules of acetonitrile in the formula unit. A center of inversion is present between the two metal atoms, and, consequently, there is no distinction between Mn(III) and Mn(IV) metal centers. In the Mn(2)O(2) core, the Mn-O distances are 1.817 (3) and 1.821 (3) Å. The cyclam ligand is in the cis configuration. The chloride counter-anion resides on a center of symmetry, whereas the tetra-phenyl-borate counter-anion is in a general position. The cyclam ligand is hydrogen bonded to the acetonitrile as well as to the chloride anion. One of the phenyl rings of the anion and the acetonitrile solvent molecule are each disordered over two sets of sites.

| S-EPMC3151985 | biostudies-literature

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