Coordination and metal ion-mediated transformation of a polydentate ligand containing oxime, hydrazone and picolinoyl functionalities

The first use of biacetylmonoxime picolinoylhydrazone in lanthanide(III) chemistry has provided access to a structurally interesting dinuclear praseodymium(III) complex. The ligand undergoes an impressive dysprosium (III)-assisted hydrolysis of its hydrazone and oxime functionalities to give a polydentate ligand containing two picolinoyl and two hydrazone moieties.