Platinum Metallacycle-Based Molecular Recognition: Establishment and Application in Spontaneous Formation of a [2]Rotaxane with Light-Harvesting Property |
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Authors: | Prof Bingbing Shi Xupeng Li Yongping Chai Peng Qin Yi Zhou Dr Wen-Juan Qu Prof Qi Lin Prof Tai-Bao Wei Prof Yan Sun Prof Peter J Stang |
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Institution: | 1. Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070 P.?R. China;2. School of Materials, Henan University, Zhengzhou, 450000 P.?R. China;3. Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, UT 84112 USA |
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Abstract: | 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 been given little 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 property 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. |
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Keywords: | Host–Guest Chemistry Light-Harvesting System Metallacycle Rotaxane Supramolecular Chemistry |
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