Science. 1992 Jan 17;255(5042):315-8. doi: 10.1126/science.255.5042.315.
The gas-phase irradiation of CpRh(CO)(2) (Cp = eta(5)-C(5)H(5)) was examined in order to study the rates of reaction of the 16-electron intermediates presumed to be involved in the C-H oxidative addition of alkanes. "Naked" (unsolvated) CpRh(CO) was detected, and direct measurements of the rates of reaction of this very short-lived complex with alkane C-H bonds were made. Activation of C-H bonds occurs on almost every collision for alkanes of moderate size, and intermediates in which the alkanes are bound to the metal centers, without their C-H bonds being fully broken, are implicated as intermediates in the overall reaction.
为了研究假定参与烷烃 C-H 氧化加成反应的 16 电子中间体的反应速率，对 CpRh(CO)(2)（Cp = η(5)-C(5)H(5)）的气相辐照进行了研究。检测到“裸露”（无溶剂）CpRh(CO)，并直接测量了这种非常短命的配合物与烷烃 C-H 键的反应速率。对于中等大小的烷烃，C-H 键的激活几乎在每一次碰撞中都发生，并且涉及到烷烃与金属中心结合，而其 C-H 键未完全断裂的中间体作为整个反应的中间体。
