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

Acta Crystallogr E Crystallogr Commun. 2021 Jun 25;77(Pt 7):726-729. doi: 10.1107/S2056989021006277. eCollection 2021 Jul 1.

Abstract

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.

Keywords: 2-picoline complex; crystal structure; hydrogen bonding; inorganic supra­molecular chemistry.

Grants and funding

This work was funded by Indrashil University.