catena-Poly[[dichloridomercury(II)]-μ-3,5-bis[2-(pyridin-4-yl)ethynyl]pyridine-κ2N:N′]

Abstract

In the title coordination polymer, [HgCl2(C19H11N3)]n, the HgII atom is coordinated by two N atoms of symmetry-related 3,5-bis(pyridin-4-ylethynyl)pyridine ligands (L) and by two chloride ions in a distorted tetrahedral geometry. The dihedral angles between the coordinated pyridine rings and the central pyridine ring are 44.6 (3) and 14.2 (3)°, respectively, while the dihedral angle between the two coordinating pyridine rings is 56.1 (3)°. The ligand bridges the HgII atoms, forming a zigzag chain running parallel to the b axis. There are no other significant intermolecular interactions present in the crystal.

Keywords

• crystal structure
• angular pyridyl-based ligand
• HgII
• coordination polymer
• zigzag chain