【24h】

Hydrogen Trapping Ability of the Pyridine-Lithium(+) (1:1) Complex

机译:吡啶-锂(+)(1:1)配合物的氢捕获能力

获取原文
获取原文并翻译 | 示例
           

摘要

Theoretical studies have been carried out at different levels of theory to verify the hydrogen adsorption characteristics of pyridine-lithium ion (1:1) complexes. The nature of interactions associated with the bonding between pyridine and lithium as well as that between lithium and adsorbed molecular hydrogen is studied through the calculation of electron density and electron-density-based reactivity descriptors. The pyridine-lithium ion complex has been hydrogenated systematically wound the lithium site, and each lithium site is found to adsorb a maximum of four hydrogen molecules with an interaction energy of similar to-40 kcal/mol per molecule of H-2. The fate of the hydrogen adsorbed in a pyridine-lithium ion complex (corresponding to the maximum adsorption) is studied in the course of a 2 ps time evolution through ab initio molecular dynamics simulation at different temperatures. The results reveal that the complex can hold a maximum of four hydrogen molecules at a temperature of 77 K, whereas it can hold only two molecules of hydrogen at 298 K.
机译:在不同的理论水平上进行了理论研究,以验证吡啶-锂离子(1:1)配合物的氢吸附特性。通过计算电子密度和基于电子密度的反应性描述符,研究了与吡啶和锂之间的键以及锂和吸附的分子氢之间的键相关的相互作用的性质。吡啶-锂离子络合物已被系统氢化,使锂位点缠绕,发现每个锂位点最多吸附四个氢分子,每个H-2分子的相互作用能相似于-40 kcal / mol。通过从头算分子动力学模拟在不同温度下,在2 ps的时间演化过程中研究了吡啶-锂离子络合物中吸附的氢的去向(对应于最大吸附)。结果表明,该配合物在77 K的温度下最多可以容纳四个氢分子,而在298 K的温度下只能容纳两个氢分子。

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