SYNTHESIS AND CHARACTERIZATION OF IRON CLATHROCHELATE COMPLEXES DERIVED FROM OXIME HYDRAZONE LIGANDS AND CAPPED BY FERROCENYLBORATE AND 1,1'-FERROCENEDIYLDIBORATE

The synthesis and characterization of a series of iron clathrochelate complexes based on oxime-hydrazone ligands and capped with ferrocenylb oronic acid to produce dimetallic species is reported. The first examp le of a metal complex which uses 1,1'-ferrocenediyldiboronic acid as a capping/bridging agent between two clathrochelate complexes to form a novel trimetallic species is also presented. The redox chemistry of t hese multiple metal systems is examined by cyclic voltammetry and cont rolled-potential electrolysis. The generation of stable mixed-valent ( Fe2+/Fe3+) species by exhaustive electrolysis and their subsequent cha racterization by UV-visible spectroscopy and cyclic voltammetry is dis cussed.