• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Structure, Reactivity, and Energetics of Covalently Bound Carbon Cluster Ions, C5(+) to C11(+): Experiment and Theory.
【24h】

Structure, Reactivity, and Energetics of Covalently Bound Carbon Cluster Ions, C5(+) to C11(+): Experiment and Theory.

机译：共价键合碳簇离子的结构，反应性和能量学，C5（+）至C11（+）：实验和理论。

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Laser ablation from a rotating, translating graphite rod is used to create a broad distribution of internally energized carbon cluster ions C (+)sub n. These energized clusters are accelerated, size selected by a magnet, and allowed to undergo unimolecular decay in a field-free region. The decay products are mass and energy analyzed by a high-resolution electrostatic analyzer. In this work we are interested in clusters in the range 5 < or = 11. The shapes of the kinetic energy distributions strongly suggest there are no energy barriers along the reaction coordinates. A detailed analysis of the kinetic energy distributions and metastable branching ratios was accomplished using the transition-state switching form of statistical phase space theory. The analysis yielded binding energies for each of the fragmentations observed. In general these are in excellent agreement with the ab initio calculations of Raghavachari and Binkley. It is also unambiguously shown for parent cluster ions with 5 < or = 10 that the observed fragmentations are due to linear clusters decaying to linear products. A cyclic parent ion structure for C(+) sub 11 could not be ruled out. Excellent agreement between experiment and theory is obtained in those cases where more than one product channel is observed. Reprints. (jhd)

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号