Advertisement

Correlation of Metal Spin State with Catalytic Reactivity: Polymerizations Mediated by α-Diimine–Iron Complexes

Authors


  • The Engineering and Physical Sciences Research Council of the United Kingdom and the Natural Sciences and Engineering Research Council of Canada are thanked for funding.

Abstract

original image

The mechanism of styrene polymerization by α-diimine iron complexes correlates with the metal spin state of the catalyst. Experimental and theoretical studies indicate that high-spin catalysts are halogenophilic, resulting in atom transfer radical polymerization (ATRP), while intermediate-spin complexes are carbophilic giving rise to catalytic chain transfer (CCT, see graph).

Ancillary