Preparation advances homogeneous, heterogeneous catalysts

This chapter is concerned with highlighting some of the more notable advances that have come to light as a result of identifying key factors that influence catalyst performance, particularly those related to precatalyst structure. The importance of the initiator and the role played in chain fransfer is probed. Current mechanistic understanding is examined from both a spectroscopic and a computational viewpoint while efforts to prepare well-defined iron or cobalt alkyl catalysts are discussed. Efforts to heterogenize these homogeneous catalysts are briefly reviewed, as is their use in multi-component catalysis. 

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