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Bis(2-amino-4-methyl-pyridinium) tetra-chloridocuprate(II).

ABSTRACT: The asymmetric unit of the title compound, (C(6)H(9)N(2))(2)[CuCl(4)], consists of one cation and one half-anion, bis-ected by a twofold rotation axis through the metal center. The anion exhibits a geometry that is inter-mediate between a T(d) and D(4h) arrangement about the Cu atom. The crystal structure contains chains of cations alternating with stacks of anions. The cationic groups inter-act via offset face-to-face π-π stacking, forming chains running along the c axis. The anion stacks are parallel to the cation chains, with no significant inter- nor intra-stack Cl⋯Cl inter-actions. There are several anion-cation hydrogen-bonding inter-actions of the (N-H)(pyridine)⋯Cl and (N-H)(amino)⋯Cl types, connecting the chains of cations to the stacks of anions. Both the N-H⋯Cl and π-π stacking inter-actions [centroid-centroid distances 3.61 (8) and 3.92 (2) Å] contribute to the formation of a three-dimensional supra-molecular architecture.

SUBMITTER: Al-Far RH

PROVIDER: S-EPMC2967911 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Bis(2-amino-6-methyl-pyridinium) tetra-chloridocuprate(II).

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Bis[4-(dimethyl-amino)pyridinium] tetra-bromidocuprate(II).

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Bis(2-amino-4-methyl-pyridinium) terephthalate tetra-hydrate.

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Project description:In the title compound, (C(5)H(14)N(2))[CuCl(4)], the copper(II) ion has a slightly tetra-hedrally distorted square-planar coordin-ation geometry and the diprotonated piperazine ring adopts a chair conformation. In the crystal structure, cations and anions are linked by inter-molecular N-H?Cl hydrogen bonds, forming a three-dimensional network.

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