Rate-structure studies of the carbonylation and decarbonylation of substituted metal carbonyl complexes

Autor: James N. Cawse, R. L. Pruett, R.A. Fiato
Rok vydání: 1979
Předmět:
Zdroj: Journal of Organometallic Chemistry. 172:405-413
ISSN: 0022-328X
DOI: 10.1016/s0022-328x(00)92313-1
Popis: The rate of CO insertion for the following complexes have been determined: RCH 2 Mn(CO) 5 where R  cyclohexyl, hydrogen, phenyl, methoxy, and carboxyl; RCH 2 Fe(CO) 4 − where R  cyclohexyl, n-octyl, n-heptyl, and phenyl. It appears that a Taft σϱ correlation can be established for this reaction. Rate data for the decarbonylation reaction of an analogous series of substituted manganese carbonyl complexes (RCH 2 COMn(CO) 5 ) was also obtained. As in the case of the CO insertion reaction, the rates increase as the Taft σ for RCH 2 decreases. The linear free energy relationships (LFER) generated in this study have been used to predict the relative probability of several reaction steps that have been postulated for the conversion of carbon monoxide and hydrogen into ethylene glycol.
Databáze: OpenAIRE