Synthesis and structure of pyridinium tri­chlorido­(pyridine-κ)zincate(II)

Source: PubMed Central Open Access, NCBI / U.S. National Library of Medicine

In the title salt, (CHN)[ZnCl(CHN)], pyridine acts as a protonated counter-ion and a ligand in the com­plex anion. toc In the title salt, (CHN)[ZnCl(CHN)], the Znatom is four-coordinated by one pyridine N atom and three chloride ligands, forming a slightly distorted tetra­hedral ZnNClenvironment. In the crystal, the cation and anion are linked by bifurcated N—H⋯(Cl,Cl) and C—H⋯Cl hy­dro­gen bonds, generating a supra­molecular assembly that is further consolidated by π–π stacking inter­actions between aromatic rings. Hirshfeld surface analysis shows that H⋯Cl/Cl⋯H contacts are the dominant contribution to the crystal packing, accounting for 44.1% of the total surface contacts, followed by H⋯H (29.9%) and H⋯C/C⋯H (15.0%) inter­actions.