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Bis(2,6-dimethyl-pyridine-?N)gold(I) tetra-chloridoaurate(III).

ABSTRACT: 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.

SUBMITTER: Ahmadi R

PROVIDER: S-EPMC2959233 | biostudies-literature | 2008 Sep

REPOSITORIES: biostudies-literature

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Bis(2,6-dimethyl-pyridine-κN)gold(I) tetra-chloridoaurate(III).

Ahmadi Roya R Dehghan Leila L Amani Vahid V Khavasi Hamid Reza HR

Acta crystallographica. Section E, Structure reports online 20080906 Pt 10

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. ...[more]

PMID: 21200996

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Project description: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.

| S-EPMC2979940 | biostudies-literature

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Tetra-kis(1,10-phenanthroline)bis-(?-pyridine-2,6-dicarboxyl-ato)(pyridine-2,6-di-carboxyl-ato)dicopper(II)terbium(III) nitrate tetra-hydrate.

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Project description:In the title compound, (C(10)H(9)N(2))[Fe(C(7)H(3)NO(4))(2)]·4H(2)O or (bpyH)[Fe(pydc)(2)]·4H(2)O, the asymmetric unit contains an [Fe(pydc)(2)](-) (pydcH(2)= pyridine-2,6-dicarboxylic acid) anion, a protonated 4,4'-bipyridine as a counter-ion, (bpyH)(+), and four uncoordinated water mol-ecules. The anion is a six-coordinate complex with a distorted octa-hedral geometry around the Fe(III )atom. A wide range of non-covalent inter-actions, i.e. O-H?O, O-H?N and N-H?O hydrogen bonds, ion pairing, C-O?? [3.431?(2)?Å] and C-H?? stacking inter-actions result in the formation of a three-dimensional network structure.

| S-EPMC2983936 | biostudies-literature

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Project description:The title compound, (C(10)H(9)N(2))[Cr(C(7)H(3)NO(4))(2)]·4H(2)O or (4,4'-bipyH)[Cr(pydc)(2)]·4H(2)O (where 4,4'-bipy is 4,4'-bipyridine and pydcH(2) is pyridine-2,6-dicarboxylic acid), was synthesized by the reaction of chromium(III) chloride hexa-hydrate with pyridine-2,6-dicarboxylic acid and 4,4'-bipyridine in a 1:2:4 molar ratio in aqueous solution. This compound is composed of an anionic complex, [Cr(pydc)(2)](-), protonated 4,4'-bipyridine as a counter-ion, (4,4'-bipyH)(+), and four uncoordinated water mol-ecules. The anion is a six-coordinate complex with a distorted octa-hedral geometry around the Cr(III) atom, formed by two tridentate pyridine-2,6-dicarboxyl-ate, pydc(2-), groups. Inter-molecular O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds, and C-O⋯π stacking inter-actions (with distances of 3.3390 (13) and 3.4575 (13) Å) connect the various components into a supra-molecular structure.

| S-EPMC2960993 | biostudies-literature

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