Synthesis of a Series of Novel Bis-Bidentate Ligands Utilizing Methylenedianiline

Hsu, Charlotte, Francesco Cardella, and Mark Benvenuto

A new series of ligands, all with methylene dianiline as a common starting material, have been synthesized. All are bisbidentate moieties containing nitrogen or sulfur donor atoms. The stability of these ligands as free molecules and as hydrochloride salts will be presented, as will their aqueous and organic solubility. Characterization has been primarily by nuclear magnetic resonance spectroscopy. This, as well as their metal binding abilities, will be discussed.