...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Triangles and tetrahedra: metal directed self-assembly of metallo-supramolecular structures incorporating bis-b-diketonato ligands
【24h】

Triangles and tetrahedra: metal directed self-assembly of metallo-supramolecular structures incorporating bis-b-diketonato ligands

机译：三角形和四面体：结合了双-b-二酮基配体的金属超分子结构的金属定向自组装

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

The interaction of six aryl-linked bis-b-diketones, including a new naphthylene linked species, with copper(II), iron(III) and, in one instance gallium(III), has been investigated with the aim of obtaining metallo-supramolecular assemblies exhibiting different geometries. New examples of two assembly types incorporating the above bis-b-diketones (L) were generated. The first type is represented by a range of molecular triangles of formula [Cu-3(2)3(n)(L-H())](solvent) (while the second is given by a corresponding selection of less-common neutral molecular tetrahedra of formula [Fe)((L-H)())(](solvent))(4)(2)(6)(n) (as well as [Ga)((L-H)())(]8.5THF0.5H)(O; an example of each type has been characterised by X-ray crystallography. A magnetochemical investigation of [Fe)((3-H)())(4)(2)(6)(2)(4)(2)(6)]6THF is reported. The susceptibility is Curie like and consistent with very weak coupling occurring between the iron(III) d5 (high spin) centres. The X-ray structures of two trinuclear copper(II) as well as a tetranuclear iron(III) and a tetranuclear gallium(III) assembly confirm their discrete triangular and tetrahedral geometries, respectively. The structure of the gallium(III) species is closely related to that of the corresponding iron(III) species. The tetrahedral structures provide rare examples of such assemblies encapsulating guest solvent molecules-in each case tetrahydrofuran is incorporated in the central cavity.
机译：已经研究了六个芳基连接的双-b-二酮，包括一个新的萘连接的物种，与铜（II），铁（III），以及在某些情况下的镓（III）之间的相互作用，目的是获得金属-具有不同几何形状的超分子组装体。产生了结合上述双-b-二酮（L）的两种组装类型的新实例。第一种由一系列式[Cu-3（2）3（n）（LH（））]（溶剂）的分子三角形表示（而第二种则由相应选择的较不常见的中性分子四面体表示） [Fe）（（LH）（））（]（溶剂））（4）（2）（6）（n）（以及[Ga）（（LH）（））（] 8.5THF0.5H ）（O;通过X射线晶体学表征了每种类型的一个例子。[Fe）（（3-H）（））（4）（2）（6）（2）（4）（ 2）（6）] 6THF的报道。磁化率类似于居里曲线，并且与铁（III）d5（高自旋）中心之间发生的非常弱的耦合相一致。两个三核铜（II）以及四核铁（III）和四核镓（III）组件的X射线结构分别证实了其离散的三角形和四面体几何形状。镓（III）物种的结构与相应的铁（III）物种的结构密切相关。四面体结构提供了这种封装来宾溶剂分子的组件的稀有实例-在每种情况下，四氢呋喃都掺入了中心腔体中。

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