高等学校化学学报 ›› 2006, Vol. 27 ›› Issue (2): 332.

• 研究论文 • 上一篇    下一篇

杯[4]二吡咯与卤素阴离子相互作用的密度泛函理论研究

陈东辉1, 陈沛全2,3,4,孙宏伟1,4,陈兰1,沈荣欣1, 袁静1,袁满雪1,赖城明1,3,李正名2,3,4   

  1. 1. 南开大学化学系; 2. 南开大学元素有机化学研究所; 3. 元素有机化学国家重点实验室;
    4. 南开大学科学计算研究所, 天津 300071
  • 收稿日期:2004-12-15 出版日期:2006-02-10 发布日期:2006-02-10
  • 通讯作者: 孙宏伟(1966年出生), 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高性能计算基金(批准号: 043185111-5)资助.

Density Functional Theory Studies on Interaction Between Calix[4]bipyrrole and Halide Anions

CHEN Dong-Hui1,CHEN Pei-Quan2,3,4,SUN Hong\|Wei1,3*,CHEN Lan1,SHEN Rong-Xin1,YUAN Jing1, YUAN Man-Xue1, LAI Chen-|Ming1,3, LI Zhen-|Ming2,3,4   

  1. 1. Department of Chemistry, 2.  Institute of Elemento\|Organic Chemistry,  3. State Key Laboratory of
    Elemento\|Organic Chemistry, 4. Institute of Scientific Computing, Nankai University, Tianjin 300071, China
  • Received:2004-12-15 Online:2006-02-10 Published:2006-02-10
  • Contact: SUN Hong-We,E-mail: sunhw@nankai.edu.cn

摘要:

采用密度泛函B3LYP方法, 在6\|31G*/LANL2DZ水平上对杯[4]二吡咯主体分子及其与卤素阴离子形成的复合物进行研究.  结果表明, 杯[4]二吡咯可与卤素阴离子相互作用形成具有较高对称性的复合物, 其8个吡咯NH基团上的H原子均可以和卤素阴离子形成氢键; 杯[4]二吡咯与卤素阴离子结合能力大小的顺序为F- >Cl- >Br- > I-.  振动光谱、 电荷分布以及前线轨道计算结果表明, 杯[4]二吡咯与卤素阴离子相互作用的本质为氢键, 经BSSE校正的结合能与电荷转移程度、 N-H键键长和N-H伸缩振动频率变化呈线性关系. 

关键词: 密度泛函(DFT);  杯[4]二吡咯;  卤素阴离子;  主客体相互作用;  氢键

Abstract:

A new class of calix[4]pyrrole analogue containing bipyrrole show a good affinity for halide anions.  calix[4]bipyrrole and its complexes with the halide anions were investigated by density functional theory(B3LYP) at the 6\|31G* and LANL2DZ level.  It was shown that  calix[4]bipyrrole and halide anions can form highly symmetric complexes by eight intermolecular hydrogen bonds.  The interaction between calix[4]bipyrrole and halide anions decreased along the halide elemental period.  The calculated results of frequency, charge distribution and front molecular orbital show that there are linear correlations between the BSSE correct binding energy and charge transference, N─H bond length, N─H stretch frequency shifts.

Key words: Density functional theory(DFT); Calix[4]bipyrrole; Halide anion; Host-guest Interaction; Hydrogen bond

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