Rotation of a double C=N bond driven by palladium

Abstract

Thiosemicarbazones are used as ligands forming many examples of compounds. Chemistry of these molecules with palladium often includes cyclopalladated but in some cases coordination compounds were reported. Structure of these complexes has not been widely described; different studies show wide structures variety. The treatment of these ligands with palladium salts lead the formation of these kind of complexes which structure and reactivity is more similar to organometallic cyclopalladated compounds than expected.