Synthesis and Crystal Structure of Di-μ-chlorido-bis{chlorido[4-ethyl-N-(pyridin-2-ylmethylidene-κN)aniline-κN]mercury(II)}

Abstract

The centrosymmetric dinuclear title complex [Hg₂Cl₄(dip)₂] was synthesized using the Schiff base bidentate ligand (E)-4-ethyl-N-(pyridine-2-ylmethylene)benzeneamine (dip) and mercury(II) chloride salts. It has been characterized by elemental analysis, X-ray diffraction, and UV-Visible and infrared spectroscopic techniques. The X-ray analysis shows that the title compound crystallizes in the monoclinic sp. gr. P2₁/n, Z = 2 with a = 7.8233(17) Å, b = 15.178(3) Å, c = 12.559(3) Å, β = 97.021(3)°. The Hg(II) ion has a distorted trigonal–bipyramidal coordination environment formed by the bischelating N-heterocyclic ligands, two bridging Cl atoms and one terminal Cl atom.