Reactivity of Cationic Group 3 and Lanthanide Metal Alkyl Complexes


The proposed research aims to elucidate the fundamental reactive chemistry of cationic alkyl complexes of the group 3 and lanthanide metals, and to evaluate their potential as catalysts for various transformations. The proposal is based on our discovery that the use of triazacyclononane-amide ligands and sterically demanding amidinate ligands allows the generation of well-defined cationic alkyl species for the full range of group 3 and lanthanide metals. Not only are these compounds highly active as olefin polymerisation catalysts, they offer the opportunity to investigate the chemistry of a new class of highly reactive species, as cationic alkyl complexes of these metals hitherto were practically unknown. We expect exciting results with respect to C-H/C-X activation chemistry, catalytic hydrogenation, hydroamination and various C-C coupling reactions.



  • S. Ge(2009): Reactivity of Rare Earth Metal Organometallics Bearing Ancillary Ligands Derived from the 1,40-Diazepan-6-amine Framework , GRONINGEN  October 23, 2009


Project number


Main applicant

Prof. dr. B. Hessen

Affiliated with

Rijksuniversiteit Groningen, Faculteit Wiskunde en Natuurwetenschappen, Stratingh Instituut voor Chemie

Team members

Dr. S. Ge, Dr. W.P. Kretschmer, Drs. N.P. Philipp


01/03/2004 to 25/05/2011