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Modular Synthesis of Linear Bis- and Tris-monodentate Fused [6]Polynorbornane-Based Ligands and their Assembly into Coordination Cages

机译:线性双-和三-单齿熔融[6]基于聚降冰片烷的配体的模块合成及其组装成配位笼

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摘要

A modular approach has been developed for the synthesis of rigid linear di- and tritopic ligands based on a fused [6]polynorbornane scaffold. The design provides up to three sites for installing functionality, including both "ends" and a "central" position with the advantage that each region can be independently addressed during synthesis. To illustrate the utility of the approach, both pyridyl and picolyl units were incorporated to provide six new ligands, with centers and ends either matched or mismatched. Indeed, both [M2L4] cages with endohedral functionality and [M3L4] complexes were cleanly produced from these ligands with assembled structures confirmed by using H-1 NMR spectroscopy, HRMS, and molecular modelling.
机译:已经开发了一种基于熔融[6]聚降冰片烷支架的合成刚性线性二和三位配体的模块化方法。该设计最多提供三个站点来安装功能,包括“端点”和“中心”位置,其优点是在合成过程中每个区域都可以独立寻址。为了说明该方法的实用性,掺入吡啶基和吡啶基单元以提供六个新的配体,其中心和末端匹配或错配。确实,具有这些结构的[M2L4]笼和[M3L4]络合物均由具有通过H-1 NMR光谱,HRMS和分子建模证实的组装结构的这些配体干净地生产。

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