In this context, palladium complexes bearing
polydentate phosphine ligands, of the type [[Pd(triphosphine)(solvent)].sup.2+], represent the most extensively studied catalysts for the electrocatalytic C[O.sub.2] reduction.
Waldron, "Conformational analysis and synthetic approaches to
polydentate perhydro-diazepine ligands for the complexation of gallium(iii)," Organic & Biomolecular Chemistry, vol.
This class of compounds is usually used as
polydentate chelating agents that can form a variety of complexes with a range of transition and inner transition metals which have attracted the attention of many researchers [8, 9].
Benoist, Efficient and Tunable Synthesis of New
Polydentate Bifunctional Chelating Agents Using Click Chemistry, J.
Schiff bases derived from salicylaldehyde (salens) as
polydentate ligands are well known to form very stable complexes with transition metal ions [10].
Due to the stronger bonds between citrate ligands and Fe(III) atoms,
polydentate citrate ligands encapsulated the Fe(III) ions, thereby preventing agglomeration of iron species during calcination.
Lactic, mallic, fumaric, and citric acids can act as
polydentate organic ligands (chelators), because these acids contain carboxylic functional groups.
This versatility has made hydrazones good
polydentate chelating agents that can form a variety of complexes with various transition and inner transition metals and have attracted the attention of many researchers.
Schiff Bases as Acyclic
Polydentate Ligands in Comprehensive Coordination Chemistry; ed.
(8.) Kaan Emregul, C, Duzgun, E, Atakol, O, "The Application of some
Polydentate Schiff Base Compounds Containing Aminic Nitrogens as Corrosion Inhibitors for Mild Steel in Acidic Media." Corros.
Polydentate ligands are chelators and may act to solubilize transition metals.
Polydentate Schiff bases with phenolic OH or nitrogen or sulphur of the ring, suitably near to the imino nitrogen may stabilize the metal-nitrogen bond through the formation of chelate rings [6a].