Citation:
YANG Jing. Competition between C-C and C-H Activation in Reactions of Neutral Nickel Atom with Cycloalkanes (n=3~7)[J]. Chinese Journal of Structural Chemistry,
;2014, 33(1): 122-134.
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A theoretical investigation of the reaction mechanisms for C-H and C-C bond activation processes in the reaction of Ni with cycloalkanes CnH2n (n=3~7) is carried out. For the Ni+CnH2n (n=3, 4) reactions, the major and minor reaction channels involve C-C and C-H bond activations, respectively, whereas Ni atom prefers the attacking of C-H bond over the C-C bond in CnH2n (n=5~7). The results are in good agreement with the experimental study. In all cases, intermediates and transition states along the reaction paths of interest are characterized. It is found that both the C-H and C-C bond activation processes are proposed to proceed in a one-step manner via one transition state. The overall C-H and C-C bond activation processes are exothermic and involve low energy barriers, thus transition metal atom Ni is a good mediator for the activity of cycloalkanes CnH2n (n=3~7).
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