高等学校化学学报 ›› 2006, Vol. 27 ›› Issue (2): 336.

• 研究论文 • 上一篇    下一篇

带状修饰的杯[4]吡咯对卤素阴离子识别的研究

赵培莉 孙宏伟 陈兰 沈荣欣 陈沛全 袁静 袁满雪 赖城明   

  1. 南开大学化学系, 南开大学科学计算研究所, 天津 300071
  • 收稿日期:2004-10-15 出版日期:2006-02-10 发布日期:2006-02-10
  • 通讯作者: 孙宏伟,男,博士,副教授,主要从事分子模拟及结构化学研究. E-mail: sunhw@nankai.edu.cn
  • 基金资助:

    国家自然科学重点基金(批准号:  29832050)、 教育部高等学校骨干教师资助计划和天津市科委“南开之星”高性能计算项目基金(批准号: 043185111-5)资助. 

Recognition of Halide Anions by Strapped Calix[4]pyrroles

 DIAO Pei-Chi, SUN Hong-Wei, CHEN Lan, CHEN Rong-Xin, CHEN Pei-Quan, YUAN Jing, YUAN Man-Xue, LAI Cheng-Meng   

  1. Department of Chemistry,  Institute of Scientific Computing,  Nankai University,  Tianjin 300071, China
  • Received:2004-10-15 Online:2006-02-10 Published:2006-02-10
  • Contact: SUN Hong-Wei,E-mail: sunhw@nankai.edu.cn

摘要:

应用分子力学/分子动力学模拟方法研究了4种带状修饰的杯[4]吡咯对卤素阴离子的识别作用.模拟结果表明, 加入带状修饰链和调节链长可以增强对某种特殊卤素阴离子的识别, 在这个过程中, 卤素阴离子与杯[4]吡咯NH上的氢形成的多氢键使主体分子与阴离子形成稳定复合物, 同时带状修饰链通过改变杯吡咯空腔大小影响主体分子与卤素阴离子的氢键相互作用, 从而调节了对不同阴离子的识别能力.

关键词: 带状修饰杯[4]吡咯; 分子力学; 分子动力学; 阴离子识别

Abstract:

Anion\|binding chemistry has emerged in recent years as one of the most intensely explored areas of supramolecular chemistry.  The binding of different halide anions to four strapped calix[4]pyrroles was  studied by means of molecular mechanics and molecular dynamics simulations methods.  The results indicate that the anion binding ability of calix[4]pyrrole-type systems could be effectively tuned by modifying the length and nature of the bridging straps. In this process,  it was the most stable conformation upon anion binding due to the formation of four NH\|halide hydrogen bond,  simultaneity,  the difference of cavity by modifying straps adapted themselves to different halide anion.

Key words: trapped Calix[4]pyrrole;  Molecular mechanics;  Molecular dynamics;  Recognition of halide anions

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