Complexing Properties of Organophosphorus Analogs of Nitrilotriacetic Acid: Aminotris(O-alkyl methylenephosphonic Acids)

Abstract

© 2018, Pleiades Publishing, Ltd. A series of tribasic aminotris(O-alkyl methylenephosphonic acids), the closest organophosphorus analogs of nitrilotriacetic acid, a widely known complexone, were synthesized. The acid‒base properties of the synthesized acids were studied, and the stability constants of their 1: 1 complexes with two-charged cations of alkaline-earth and transition metals were determined.