Lewis-acid-promoted decarbonylation of coordinated carbon dioxide: Reactions of (??5-MeC5H4)2Nb(?? 2-CO2)CH2SiMe3 with Lewis acids The interaction of Cp'2Nb(eta-2-CO2)CH2SiMe3 (1; Cp' = eta-5-MeC5H4) with several Lewis acids has been studied and found to result in facile decarbon...