Five heteronuclear nickel(II)/lead(II) complexes with two compartmental reduced Schiff base ligands were prepared and characterized. Their structures were confirmed by single crystal X-ray diffraction analyses. In each complex, nickel(II) is placed in the inner N 2 O 2 compartment and lead(II) in the outer O 2 O 2 ′ compartment of reduced Schiff base ligands. Interesting molecular architectures were formed via supramolecular interactions in the solid state of the complexes. A density functional theory study is devoted to analyze unconventional tetrel bonding interactions established between the σ-hole at the hemicoordinated lead(II) and either the electron-rich thiocyanate or the π-system of the aromatic ligand. In addition, π-stacking assemblies between both the aromatic rings and fivemembered Pb-chelate rings were described and studied both with regard to their energies and by using the noncovalent plot index.

A hemi-directed copper(ii)/lead(ii) complex has been synthesized and characterized. The energy of chalcogen–chalcogen and tetrel bonding interactions in this complex was analyzed by DFT calculations.

No abstract

A hetero-nuclear nickel(ii)/lead(ii) complex has been synthesized and characterized. The tetrel bonding interactions established between the σ-hole at the hemi-coordinated lead(ii) and the electron rich chlorido ligand has been analyzed by DFT study.

No abstract