化学学报 ›› 2002, Vol. 60 ›› Issue (9): 1591-1595. 上一篇    下一篇

研究论文

过渡金属离子与乙腈团簇的反应

王进;王娟;高辉;张允武;盛六四   

  1. 中国科学技术大学,合肥(230026)
  • 出版日期:2002-09-15 发布日期:2002-09-15

Reactions of Transition Metals with Acetonitrile Clusters

Wang Jin;Wang Juan;Gao Hui;Zhang Yunwu;Sheng Liusi   

  1. National Synchrotron Radiation Laboratory, University of Science and Technology of China,Hefei(230026)
  • Online:2002-09-15 Published:2002-09-15

用激光溅射-分子束技术,研究了几种过渡金属离子与乙腈团簇分子的气相化 学反应,根据反射式飞行时间质谱检测的结果,不同的过渡金属离子可与乙腈分子 形成不同尺寸的团簇离子产物,其中Ti~+,V~+,Cr~+与乙腈反应的活泼性强于 Cu~+,Fe~+与乙腈反应的活泼性。分析过渡金属离子Ti~+,V~+,Cr~+与乙腈反应 所生成团簇离子的强度分布,发现它们都在n = 2和n = 3之间形成明显的强度间隙 。

关键词: 激光, 溅射, 分子束, 飞行时间质谱法, 乙腈

Reactions of transition metals with acetonitrile clusters in the gas phase are studied using laser ablation-molecule beam technique. Differently sized cluster ions for different transition metals are observed in reflection time-of-flight mass spectrum. Reactivities of Ti~+, V~+, Cr~+ are stronger than those of Cu~+, Fe~+. It should be mentioned that the M~+ (CHCN)_2 (M~+ = Ti~+, V~+, Cr~+) cluster ions have larger intensity than the others.

Key words: LASER, SPUTTERING, MOLECULAR BEAM, TIME-OFF FLIGHT MASS SPECTROMETRY, ACETONITRILE

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