• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemistry: A European journal >Supramolecular Complexation of N-Alkyl- and N,N '-Dialkylpiperazines with Cucurbit[6]uril in Aqueous Solution and in the Solid State
【24h】

Supramolecular Complexation of N-Alkyl- and N,N '-Dialkylpiperazines with Cucurbit[6]uril in Aqueous Solution and in the Solid State

机译：N-烷基和N，N'-二烷基哌嗪与葫芦[6]尿素在水溶液和固态中的超分子络合

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Complex stoichiometry/composition and degree of oligomerization (oligomeric supramolecular complex formation) of cucurbit[6]uril (CB[6]) with N-alkyl- and N,N'-dialkylpiperazine were investigated in aqueous solutions by means of isothermal titration calorimetry (ITC), ESI-MS, NMR and light scattering measurements. It was found that the complex stability and the degree of oligomerization increase with elongating the alkyl chain attached to the piperazine core. X-ray crystallographic studies revealed a clear correlation between the structure of CB[6]-alkylpiperazine crystals obtained from aqueous solutions and the molecular weight/properties of host-guest oligomers existed in the solution as supramolecular "seeds" of crystal formation.
机译：用等温滴定量热法研究了葫芦[6]尿素（CB [6]）与N-烷基和N，N'-二烷基哌嗪的配合物化学计量/组成和低聚度（低聚超分子复合物的形成） ITC），ESI-MS，NMR和光散射测量。已经发现，复杂性和低聚度随着延伸连接至哌嗪核心的烷基链而增加。 X射线晶体学研究表明，从水溶液中获得的CB [6]-烷基哌嗪晶体的结构与溶液中作为晶体形成的超分子“种子”存在的主体-客体低聚物的分子量/性质之间存在明显的相关性。

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