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Updated: Jun 21, 2026

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
Germylene and silylene complexes of molybdenum via E-H (E = Ge, Si) bond activations: steric influences on
Akihiro Shinohara1, Jennifer McBee, T Don Tilley
1Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, USA.
Abstract:
Reactions of Cp*(dmpe)Mo(eta(3)-CH(2)Ph) with organogermanes (RR'GeH(2)) afforded germylene complexes Cp*(dmpe)Mo(H)GeRR' (RR' = Ph(2) (2), Et(2) (3), (Mes)H (4), ((t)Bu)H (5)). Compound 2 does not possess an intramolecular H...Ge interaction of the type exhibited by its silicon analogue and by 3. The existence of such interactions appears to depend on the steric properties of substituents on the Ge (or Si) atom. For comparison, a silylene complex was prepared by reaction of 9-silafluorene with 1, to give Cp*(dmpe)Mo(H)Si(C(12)H(8)), which on the basis of NMR spectroscopy does not possess a significant Si...H interaction.
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