气相C_(60)在化学电离质谱中分别与3种氯代甲烷和4种氯代乙烷的分子离子及其碎片离子发生气相离子-分子反应,观察到C_(60)的几十种气相加合离子(其中绝大多数为含氯原子的).通过对比分析认为,C_(60)的加合离子丰度并不与反应物氯代烷中相应碎片离子丰度成顺变关系,某些含自由基的碎片离子(或自由基)与C_(60)(或C~+-(60))表现出更强的反应活性,这体现了C_(60)作为烯烃的吸自由基特性. In the chemical ionization mass spectrometry, the gas phase C_ (60) gas-phase ion-molecule reaction with three kinds of methyl chloride and four kinds of chloroethane molecular ions and their fragment ions, observed dozens of gas phase C_ (60) (Most of them are chlorine atoms) .According to the comparative analysis, it is concluded that the abundance of the added ions of C_ (60) does not change with the abundance of corresponding fragment ion in the reactant chloroalkane, Fragments of free radicals (or free radicals) showed stronger reactivity with C 60 (or C ~ + - (60)), which showed C 60 as the radical-absorbing property of olefins.