16610-75-6Relevant articles and documents
Ion Beam Studies of the Reactions of Atomic Cobalt Ions with Alkanes: Determination of Metal-Hydrogen and Metal-Carbon Bond Energies and an Examination of the Mechanism by which Transition Metals Cleave Carbon-Carbon Bonds
Armentrout, P.B.,Beauchamp, J. L.
, p. 784 - 791 (1981)
An ion beam apparatus is employed to study the reactions of singly charged cobalt positive ions with hydrogen and 17 alkanes.Reaction cross sections and product distributions as a function of kinetic energy are determined.Exothermic carbon-carbon bond cleavage reactions are observed for all alkanes but methane and ethane.A mechanism involving oxidative addition of C-C and C-H bonds to cobalt as a first step is demonstrated to account for all major reactions at all energies.Interpretation of several endothermic processes allows the extraction of thermochemical data.The bond dissociation energies obtained are Do(Co+-H)=52+/-4 kcal/mol, Do(Co-H)=39+/-6 kcal/mol, Do(Co+-CH3)=61+/-4 kcal/mol, and Do(Co-CH3)=41+/-10 kcal/mol.