Platinum Metallacycle-Based Molecular Recognition: Establishment and Application in Spontaneous Formation of a [2]Rotaxane with Light-Harvesting Property.
Platinum Metallacycle-Based Molecular Recognition: Establishment and Application in Spontaneous Formation of a [2]Rotaxane with Light-Harvesting Property.
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DOI：
10.1002/anie.202305767
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发表时间：
2023-06
影响因子：
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通讯作者：
B. Shi;Xupeng Li;Yongping Chai;Penghua Qin;Yi Zhou;Wen-juan Qu;Qi Lin;T. Wei;Yan Sun
中科院分区：
文献类型：
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作者：
B. Shi;Xupeng Li;Yongping Chai;Penghua Qin;Yi Zhou;Wen-juan Qu;Qi Lin;T. Wei;Yan Sun
基于大环分子的主客体体系为设计和构建功能性超分子结构做出了贡献，近年来受到越来越多的关注。特别是，基于铂(II)金属环的主客体系统为化学科学家提供了制备具有各种功能和结构的新型材料的机会，因为铂(II)金属环的形状和空腔大小定义得很好。然而，基于铂(II)金属环的主客体体系的研究受到的关注较少。在这篇文章中，我们展示了铂(II)金属环与多环芳烃分子--萘之间的主客体络合作用。利用基于金属环的主客体相互作用和形成可逆铂配位键的动态共价化学，通过模板定向剪裁过程有效地合成了[2]轮烷。[2]轮烷被进一步应用于制造具有多步能量转移过程的高效捕光系统。这项工作是对基于大环的主客体系统的重要补充，并展示了一种有效生产具有实用价值的定义明确的机械互锁分子的策略。
Macrocyclic molecule-based host-guest systems, which provide contributions for the design and construction of functional supramolecular structures, have gained increasing attention in recent years. In particular, platinum(II) metallacycle-based host-guest systems provide opportunities for chemical scientists to prepare novel materials with various functions and structures due to the well-defined shapes and cavity sizes of platinum(II) metallacycles. However, the research on platinum(II) metallacycle-based host-guest systems has received less attention. In this article, we demonstrate the host-guest complexation between a platinum(II) metallacycle and a polycyclic aromatic hydrocarbon molecule, naphthalene. Taking advantage of metallacycle-based host-guest interactions and the dynamic covalent chemistry in the formation of reversible Pt coordination bonds, a [2]rotaxane is efficiently prepared by employing a template-directed clipping procedure. The [2]rotaxane is further applied to the fabrication of an efficient light-harvesting system with multi-step energy transfer process. This work comprises an important supplement to macrocycle-based host-guest systems and demonstrates a strategy for efficient production of well-defined mechanically interlocked molecules with practical values.