首页> 外文期刊>Computational Chemistry >Theoretical Investigations on the π-π Stacking Interactions in Phenol-Water Complexes
【24h】

Theoretical Investigations on the π-π Stacking Interactions in Phenol-Water Complexes

机译:苯酚 - 水分中π-π堆叠相互作用的理论研究

获取原文
           

摘要

Non covalent interactions are quite common in all kinds of π-systems, such as π-π interactions, long range/short range van der waal force of interactions, ion-π interactions etc. Ab initio calculations are well established and account well for the experimental long range interaction energies for small clusters of aromatic molecules and most of the calculations were carried out using the MPn methods. If a reasonably large basis set is used to calculate the stacking interaction energies for a cluster (dimer, trimer etc.) of aromatic molecules then the electron-electron correlation energy may be properly calculated. Moreover, ab initio calculations for aromatic π-systems show that the calculated stacking interaction energies highly depend on the basis set used and the electron correlation energy. In this investigation, the electron correlation of the stacked hydrated phenol systems has been accounted at MP2 level of calculations. We have calculated the π-π stacking interaction energies of the hydrated phenolic systems with different conformations.
机译:非共价相互作用在各种π-系统中非常常见,例如π-π相互作用,长距离/短范围范围的相互作用,离子-Π相互作用等。AB ININIO计算得到了很好的建立和井使用MPN方法进行用于小植物的小簇的实验性长距离相互作用能量和大部分计算。如果使用合理大的基础组来计算芳族分子的簇(二聚体,三聚体等)的堆叠相互作用能量,则可以适当地计算电子相关能量。此外,芳族π-系统的AB Initio计算表明,计算的堆叠交互能量高度依赖于所使用的基础集和电子相关能量。在该研究中,堆叠水合酚体系的电子相关性已经占MP2的计算水平。我们已经计算了具有不同构象的水合酚类系统的π-π堆叠相互作用能量。

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