Transition-Metal Complexes of Heavier Cyclopropenes: Non-Dewar–Chatt–Duncanson Coordination and Facile Si═Ge Functionalization
Paresh Kumar Majhi, Michael Zimmer, Bernd Morgenstern, David Scheschkewitz
Abstract
Ge-cyclopropenes as nickel complexes in excellent yields. NMR spectroscopic data, X-ray crystallographic analysis, and DFT calculations indicate a coordination mode different from the metallacyclopropane and π-complex extremes of the Dewar-Chatt-Duncanson model: the σ-component of the Ge═Si double bond acts as donor and acceptor, leaving behind a nearly unsupported Si-Ge π-bond.
Topics & Concepts
ChemistryCarbeneMoietyTransition metalGermaniumNickelNucleophileCatalysisMetalMedicinal chemistryPhotochemistryStereochemistryOrganic chemistrySiliconCyclopropane Reaction MechanismsN-Heterocyclic Carbenes in Organic and Inorganic ChemistryOrganometallic Complex Synthesis and Catalysis