Controlled polymerization of isoprene promoted by a type of hemilabile XPN³ (X = O, S) ligand supported cobalt(<scp>ii</scp>) complexes: the role of a hemilabile donor on the level of control

Abstract

Cobalt dichloride complexes (<bold>Co1–Co9</bold>) carrying a novel type of hemilabile donor PN³ (<bold>L1–L3</bold>) or XPN³ (<bold>L4–L6</bold>, X = O; <bold>L7–L9</bold>, X = S) are reported as precursors for controlled polymerization of isoprene.