Synthesis, Structural Characterization, and Theoretical Analysis of Nonconventional Bonding in Dinuclear Zinc(II) Complexes with Tridentate Schiff Bases.

Two tridentate N,N,O-donor ligands, HL = 4-chloro-2-(((2-(methylamino)ethyl)amino)methyl)phenol and HL = 4-chloro-2-(((2-(dimethylamino)ethyl)amino)methyl)phenol, have been used to synthesize phenolate-bridged dinuclear complexes [Zn(L)Cl] () and [Zn(L)(N)] (). Single-crystal X-ray diffraction analysis confirmed their structures. Both complexes form assemblies in the solid state. Moreover, the existence of nonconventional spodium bonds in and tetrel bonds in has been explored using theoretical calculations, including MEP surface plots and QTAIM and NCIplot analyses.