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Bis(triphenyl-guanidinium) tetra-chlorido-cuprate(II).

ABSTRACT: The structure of the title compound, (C(19)H(18)N(3))(2)[CuCl(4)], consists of square-planar [CuCl(4)](2-) anions and triphenyl-guanidinium cations. The Cu(II) ion occupies a crystallographic inversion centre. In the cation, the dihedral angles between the phenyl rings and the plane defined by the central guanidinium fragment are in the range 51.9 (4)-64.4 (3)°. N-H⋯Cl hydrogen bonds assemble the ions into infinite chains running along the b axis.

SUBMITTER: Pereira Silva PS

PROVIDER: S-EPMC2961991 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Crystal structure of bis-(N,N,N',N'-tetra-methyl-guanidinium) tetra-chlorido-cuprate(II).

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Project description:In the title salt, (C7H7N2)2[CuCl4]·2H2O, the Cu2+ cation is coordinated by four Cl atoms and adopts a distorted tetra-hedral geometry. Two mol-ecules of imidazo[1,2-a]pyridine are protonated ensuring electrical neutrality. O-H⋯Cl and N-H⋯O hydrogen bonds link the organic and the inorganic moieties, leading to a self-organized hydrated hybrid structure.

| S-EPMC5290564 | biostudies-literature

Bis(2-methyl-pyridinium) tetra-chlorido-cuprate(II): synthesis, structure and Hirshfeld surface analysis.

Project description:The title compound, (C6H8N)2[CuCl4], crystallizes in the monoclinic space group I2/c. The coordination around the copper atom is a distorted tetra-hedron. The 2-methyl-pyridinium ion (C6H8N+) inter-acts with the tetra-chloro-cuprate anion through N-H⋯Cl and C-H(phen-yl)⋯Cl contacts, forming a hydrogen-bonded layer-like structure. The supra-molecular structure is further stabilized by C-H(meth-yl)⋯Cl inter-actions between the layers.

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Crystal structure of the monoclinic phase (phase IV) of bis-(tetra-methyl-ammonium) tetra-chlorido-cuprate(II).

Project description:The crystal structure of the low-temperature monoclinic phase of the title compound, [(CH3)4N]2[CuCl4], was determined at 120 K. The structure of the room-temperature phase has been determined in the ortho-rhom-bic space group Pmcm [Morosin & Lingafelter (1961 ▸). J. Phys. Chem. 50-51; Clay et al. (1975 ▸). Acta Cryst. B31 289-290]. The asymmetric unit consists of one discrete tetra-chlorido-cuprate anion with a distorted tetra-hedral geometry and two tetra-methyl-ammonium cations. In the crystal, the cations and the anions are linked via weak C-H⋯Cl hydrogen bonds.

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