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将激光解离／分子束流／飞行时间质谱仪结合起来设计的装置内，让激光解离石英反应室内的单质镍，并使产生的Ni+与连续喷入的酮类化合物分子束流反应，生成的产物离子经飞行时间质谱仪检测，发现在Ni+与酮的气相反应中，Ni+总是插入与酮羰基相连的C-C单键，然后发生分子内重排，裂解。根据如下的插入机理能很好地解释发生的反应：（1）Ni+插入酮分子中O=C-C的C-C单键；（2）β-H或β-烷基迁移至Ni+上；（3）失去中性分子得Ni+的络合物离子。
The laser dissociation / molecular beam / time-of-flight mass spectrometer combined device designed so that the laser dissociation of quartz in the reaction chamber elemental nickel, and Ni + produced by continuous injection of ketonic compound molecular beam reaction generated Of the product ions detected by time-of-flight mass spectrometry and found that in the Ni + and the gas phase reaction of the ketone, Ni is always inserted into the CC bond with the keto carbonyl single bond, and then intramolecular rearrangement, cleavage. The reaction occurs well according to the following insertion mechanism: (1) Ni + insertion of the CC single bond of O = CC in the ketone molecule; (2) migration of β-H or β-alkyl to Ni +; (3) loss of Neutral molecules have Ni + complex ions.