The saccharinate anion, obtained by deprotonation of the N-H moiety of saccharin (o-sulfobenzimide) is a very versatile and polyfunctional ligand in coordination chemistry. In this review the different forms of metal-to-ligand interactions involving this anion and some other coordination peculiarities are briefly discussed on the basis of some selected examples.

The saccharinate anion, obtained by deprotonation of the N-H moiety of saccharin (o-sulfobenzimide) is a very versatile andpolyfunctional ligand in coordination chemistry. In this review the different forms of metal-to-ligand interactions involving thisanion and some other coordination peculiarities are briefly discussed on the basis of some selected examples.Keywords: saccharin; saccharinate; metal complexes; metal-saccharinate bonds.