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, 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 on the supramolecular assembly of metalcontaining compounds. Salehi, S.;Bauzá, A.;Flanagan, K. J.;:Solid-state supramolecular architectures of a series of Hg(ii) halide coordination compounds based on hydroxyl-substituted Schiff base ligands.CrystEngComm 21, 6301-6312.

Zn(II) and Cd(II) coordination compounds containing 4-((pyridin-4-ylmethylene)amino)phenol ligands were synthesized and then characterized using spectroscopic techniques and single crystal X-ray crystallography. The molecular structure and crystal packing of these complexes, as well as the packing of related compounds, were investigated using geometrical, Hirshfeld surface analyses, and theoretical calculations. The supramolecular architecture of these coordination complexes is governed by a combination of πꞏꞏꞏπ stacking, C-Hꞏꞏꞏπ, O-HꞏꞏꞏN, and C-HꞏꞏꞏX hydrogen bonding interactions. This study provides further insight into the understanding of the coordination chemistry of group IIB containing Schiff-base ligand and the role of weak non-covalent interactions in the solid-state structure of coordination compounds.