Protonolysis of Metal-Carbon Bonds in Complexes Possessing d-Electrons

Mechanism of ProtonolysIs of Metal-Carbon Bonds in Complexes Possessing d-Electrons 

Mechanism of Protonation of Metai-Hydride Bonds in Complexes Containing d-Electrons 

Mechanism of Electrophilic Attack on Alkyl Complexes that Lack d-Electrons 

The reactions of electrophiles with metal complexes lacking d-electrons do not occur by initial addition of the electrophile to the metal center. The d-orbitals of a complex do not make a substantial contribution to the highest occupied molecular orbital (HOMO). Therefore, electrophiles do not react at the metal center in such complexes. 

Likely origin of the retention of configuration upon reaction of Brj with a Zr(IV) alkyl. 

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