Ion molecule reactions of carbon cluster ions with D2 and O2
Ion molecule reactions of carbon cluster ions with D2 and O2
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碳簇离子与D2和O2的离子分子反应
DOI：
10.1063/1.452274
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
A. O’Keefe
中科院分区：
文献类型：
--
作者：
S. Mcelvany;B. Dunlap;A. O’Keefe
用傅里叶变换质谱法研究了激光产生的碳簇离子（C+n; n= 3-19）的离子/分子化学。研究了大量选择的碳簇离子与D2和O2的离子/分子反应，并测量了反应速率。还研究了初级产物离子与D2和O2的反应。观察到的反应性变化作为簇大小的函数表明，在n=9和10之间，簇离子的结构从线性环转变为单环。C+7簇离子存在两种结构异构体的证据也被观察到，并归因于离子的线性和环状形式的存在。MNDO计算也被用来获得可能的反应物和产物离子的结构和热力学信息，试图解释在离子/分子反应中观察到的差异。讨论了碳簇离子碰撞诱导解离的研究结果。
The ion/molecule chemistry of laser‐generated carbon cluster ions (C+n; n=3–19) has been studied using Fourier transform mass spectrometry. The ion/molecule reactions of mass‐selected carbon cluster ions with D2 and O2 have been studied and reaction rates measured. Reactions of the primary product ions with D2 and O2 were also studied. The change in reactivity observed as a function of cluster size suggests a structural change from linear to monocyclic rings in the cluster ions between n=9 and 10. Evidence for the presence of two structural isomers for the C+7 cluster ion has also been observed and has been attributed to the existence of both a linear and cyclic form of the ion. MNDO calculations have also been used to obtain structural and thermodynamic information on possible reactant and product ions in an attempt to explain the differences observed in the ion/molecule reactions. The results from collision induced dissociation studies of the carbon cluster ions are also discussed.