Synthesis and properties of three coordination compounds with a monodentate Schiff-base ligand

Efficient preparation of multimetallic ONO-based Schiff base complexes of nickel(ii) and copper(ii)

“…3 During the last decade, a wide variety of ONX-based tridentate Schiff bases (X = O, 4,5 N, 6-8 and S 9 ) has been designed and synthesized in order to generate coordination compounds with diverse structures, shapes, nuclearity and dimensionality, 3,10 depending on the various influencing factors like metal-to-ligand ratios, anions, pH, temperature, solvents, etc. 11 Transition metal complexes derived from ONX tridentate Schiff base ligands can be linked using bidentate ancillary ligands as spacers, 6a,b leading to the construction of bi-and multinuclear divalent transition metal compounds that have been studied in order to rationalize the influence of the bridging ligands and the metal centers on the resulting molecular systems. 12 Particular interest has been devoted to the study of paramagnetic derivatives with two or more half-spin metal centers.…”

Homoleptic CoII, NiII, CuII, and ZnII Complexes Based on 8‐Hydroxylquinoline Schiff Base Derivative: a Combined Synthetic, Spectral, Structural, and Magnetic Study

“…Mono‐condensed Schiff bases have also been obtained either by direct,, or metal template,, reactions between carbonyl units and appropriate amino alcohol, diamine or aminothiol substrates, yielding a large variety of tridentate ligands featuring ONX‐donor sets (X = O, N, and S) , . Metal complexes prepared with these ligands show diverse structure features, topology, nuclearity as well as supramolecular architectures, depending on the experimental conditions (metal‐to‐ligand ratios, supporting anions, solvents, etc) , , . At this stage, it is worthy to emphasize that ONN‐tridentate derivatives bearing a pendant free amino group are useful building blocks for the synthesis of unsymmetrically‐substituted tetradentate and compartmental Schiff base ligands , …”