Solid-state supramolecular architectures of a series of Hg(II) halide coordination compounds based on hydroxyl-substituted Schiff base ligands

Abstract

Crystal engineering of coordination complexes has become an important research domain of modern inorganic chemistry. Herein, six Hg(II) coordination compounds containing 2-((pyridin-3-ylmethylene)amino)phenol and 4-((pyridin-4-ylmethylene)amino)phenol ligands were synthesized and characterized by single crystal X-ray crystallography and spectroscopic techniques. The crystal structure of these coordination compounds was studied using geometrical and Hirshfeld analyses as well as theoretical calculations. The results revealed the contribution of π-stacking, as well as hydrogen bonding interactions in the supramolecular architecture of these coordination compounds. This study may provide further insight into elucidating the role of weak non-covalent interactions in the supramolecular assembly of metal-containing compounds.