Accession Number : ADA088608


Title :   Photochemistry of Cobalt Carbonyl Complexes having a Cobalt-Silicon Bond and its Importance in Activation of Catalysis.


Descriptive Note : Interim technical rept.,


Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF CHEMISTRY


Personal Author(s) : Reichel,Carol L ; Wrighton,Mark S


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA088608


Report Date : 22 Aug 1980


Pagination or Media Count : 22


Abstract : Photochemistry of R3SiCo(CO)4 (R = Et, Ph) in hydrocarbon solvents shows that the dominant primary excited state process is loss of CO, not cleavage of the Si-Co bond. The 366 nm quantum yield for CO substitution by P(OPh)3 is 0.28 + or - 0.05 to give R3SiCo(CO)3P(OPh)3. Regeneration of catalytic activity in the Co2(CO)8/1-pentene/HSiEt3 system can be accomplished photochemically by exciting the Et3SiCo(CO)4 species.


Descriptors :   *PHOTOCHEMICAL REACTIONS , *CHEMICAL BONDS , *CATALYSIS , *METAL COMPLEXES , EXCITATION , HYDROCARBONS , QUANTUM EFFICIENCY , SOLVENTS , SILICON COMPOUNDS , PH FACTOR , COBALT COMPOUNDS , CLEAVAGE , CARBONYL COMPOUNDS , SUBSTITUTION REACTIONS


Subject Categories : Physical Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE