• 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 Synthesis through Dihydrogen Bonds: Self-Assembly of Controlled Architectures from NaBH_4(centre dot)Poly(2-hydroxyethyl)cyclen Building Blocks
【24h】

Supramolecular Synthesis through Dihydrogen Bonds: Self-Assembly of Controlled Architectures from NaBH_4(centre dot)Poly(2-hydroxyethyl)cyclen Building Blocks

机译：通过双氢键的超分子合成：由NaBH_4（中心点）聚（2-羟乙基）环蛋白构建基块自控体系结构的自组装

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

A systematic investigation of molecular structures/supramolecular organization relationships in dihydrogen-bonded complexes comprising NaBH_4 and poly-2-hydroxyethyl-cyclen (poly-HEC) building blocks is reported. Like in the prototype compound 1, a (NaBH_4-poly-HEC)_2 dimeric arrangement has been found in the analogous structures 3 and 5, but not in compound 2, which lacks dihydrogen bonds. The exact connectivity of the dimmers is determined by a complex interplay of noncovalent interactions such as OH…HB dihydrogen bonds, OH…O conventional hydrogen bonds, Na-O and Na-N coordinative bonds, and dispersion interactions. The persistent recurrence of this general supramoleclar motif permits controlled assembly of extended networks with desired architectures, by the use of appropriate spacers for linking the dimmers, as demonstrated by the solid-state structure of 7. Additionally, the intrinsic solid-state reactivity of these dihydrogen-bonded networks makes this approach a promising strategy for the rational construction of functional extended covalent solids.
机译：对包含NaBH_4和聚-2-羟乙基环素（poly-HEC）结构单元的二氢键结合的复合物的分子结构/超分子组织关系进行了系统的研究。像在原型化合物1中一样，在类似的结构3和5中发现了（NaBH_4-poly-HEC）_2二聚体排列，但是在缺少二氢键的化合物2中却没有发现。二聚体的确切连通性取决于非共价相互作用的复杂相互作用，例如OH…HB二氢键，OH…O常规氢键，Na-O和Na-N配位键以及分散相互作用。通过使用适当的间隔基来连接二聚体，这种一般的超分子基序的持久存在可实现具有所需结构的扩展网络的受控组装，如7的固态结构所示。此外，这些分子的固有固态反应性双氢键网络使该方法成为合理构建功能性扩展共价固体的有前途的策略。

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