Multiphoton infrared laser activation of organometallic species: a novel probe of the potential energy surfaces for reactions of cobalt ions with C5H10 isomers
Ion-beam studies of the reactions of atomic cobalt ions with alkenes
作者:P. B. Armentrout、L. F. Halle、J. L. Beauchamp
DOI:10.1021/ja00412a016
日期:1981.11
reaction yields cobalt ion alkadiene complexes and either methane or H/sub2/. The second process involves cleavage of the alkene into two smaller olefins, one of which remains bound to Co/sup +/. A mechanism involving oxidative addition of an allylic C-C or C-H bond to the metal as the initial step is proposed to account for all observed products. Subsequent formation of a cobaltacyclobutane species is
Ion-beam studies of the reactions of atomic cobalt ions with cycloalkanes in the gas phase. Formation and decomposition of chemically activated metallacycles
作者:P. B. Armentrout、J. L. Beauchamp
DOI:10.1021/ja00412a017
日期:1981.11
An ion-beam apparatus is employed to study the reaction of singly charged cobalt positive ions with cyclopropane, cyclobutane, cyclopentane, and cyclohexane. In all cases, ring cleavage reactions are observed. These processes find analogy with the decompositions of solution-phase metallacycles by C-C bond cleavage. In all systems but cyclopropane, dehydrogenation of the cycloalkane is also observed
Kinetic energy release distributions as a probe of transition-metal-mediated hydrogen-hydrogen, carbon-hydrogen, and carbon-carbon bond formation processes: reactions of cobalt and nickel ions with alkanes
作者:Maureen A. Hanratty、J. L. Beauchamp、Andreas J. Illies、Petra. Van Koppen、M. T. Bowers