Calcium Carbene Complexes
(Orzechowski, Jansen, Harder
(Orzechowski, Harder |
The first calcium carbene complexes with a formal electrostatic "double bond" between a R2C2- unit and Ca2+ have been obtained in the form of a bis(iminophosphorane)-methandiide complex.
Substitution of the Me3Si-substituent for the much larger 2, 6-diisopropylphenyl group results in formation of a monomeric calcium carbene complex.