...
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Structures and solution dynamics of pseudorotaxanes mediated by alkali-metal cations
【24h】

Structures and solution dynamics of pseudorotaxanes mediated by alkali-metal cations

机译:碱金属阳离子介导的假轮烷的结构和溶液动力学

获取原文
获取原文并翻译 | 示例
           

摘要

Kinetic stability studies of a series of pseudorotaxanes formed from electron-rich crown ethers(hosts 1 and 2)and naphthalene diimide(guest A)in the presence of alkali salt templates MX(where M~+=Li~+and Na~+,and X~-=Cl~-,Br~-,I~-,NO_3~-and CF3SO_3~-)were performed by ~1H NMR.The switching between the(bound)host 1 and its linkage isomer host 2(free)was monitored in solution in the presence and absence of alkali salts,to establish the relative thermodynamic stabilities in the series.We also report here six new crystal structures,for pseudorotaxanes of type:[1·A],[M2·1·A]~(2+)and[M2·2·A]~(2+).Their solution-phase structures are in good agreement with the solid-state structures determined by X-ray crystallography.
机译:在碱金属盐模板MX(其中M〜+ = Li〜+和Na〜+,)存在下,由富电子冠醚(主体1和2)和萘二酰亚胺(来宾A)形成的一系列假轮烷的动力学稳定性。 X〜-= Cl〜-,Br〜-,I〜-,NO_3〜-和CF3SO_3〜-)通过〜1H NMR进行。(键合)主体1和其键合异构体主体2(自由)之间的切换在存在和不存在碱金属盐的情况下,在溶液中进行监测,以建立系列的相对热力学稳定性。在此,我们还报告了六种新的晶体结构,用于[1·A],[M2·1·A]型假轮烷〜(2+)和[M2·2·A]〜(2+)。它们的固溶相结构与通过X射线晶体学测定的固态结构非常吻合。

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