| 彭晓霞.化学通报,2016,79(5):448-452. |
| 两种新型基于三蝶烯的分子钳的合成及其与缺电子客体络合作用研究 |
| Synthesis of Two Novel Triptycene-Based Molecular Tweezers and Its Complexation with Electron-deficient Guest |
| 投稿时间：2015-08-27 修订日期：2015-10-27 |
| DOI： |
| 中文关键词: 三蝶烯 分子钳 主客体化学 核磁滴定 |
| 英文关键词:Triptycene, molecular tweezers, host-guest chemistry, 1H NMR titration |
| 基金项目: |
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| 中文摘要: |
| 本文合成了两种含有三蝶烯单元的分子钳1和2，通过1H NMR、13C NMR、质谱、元素分析以及X射线单晶衍射等表征手段确证了化合物的结构。通过核磁滴定法以及ESI-MS法研究了化合物1和2在溶液中与7种缺电子客体的络合行为，结果表明：1）主客体之间的络合是按照摩尔比1:1进行的；2） 两种主体的配位能力1 > 2; 3）缺电子程度大的客体与主体络合能力强。利用ORTEP 1.076理论计算模拟主客体络合行为，结果表明非共价键相互作用在主客体形成夹心络合物的过程中起着重要作用。 |
| 英文摘要: |
| Triptycene–based molecular tweezers 1 and 2 have been synthesized，their structure were characterized by 1H NMR, 13C NMR, MALDI-TOF, Elemental analysis and X-ray crystallography. The interactions between hosts and seven electron-deficient guests in solution were studied by 1H NMR titration and ESI-MS. The results show that: 1) 1:1 complexes were formed between most of the hosts and guests; 2) the host 1 has better binding ability than the host 2; 3) the hosts would selectively bind the electron-deficient guests. Moreover, the complexing behavior of 1?G1 was simulated by the program ORTEP 1.076, which suggested that the noncovalent interactions play important roles in the formation of sandwich-type host-guest complexes. |
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