Stacking Interactions Induced Selective Conformation of Discrete Aromatic Arrays and Borromean Rings

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• 作者：Long Zhang ; Lin Lin ; Dong Liu ; Yue-Jian Lin ; Zhen-Hua Li ; Guo-Xin Jin
• 刊名：Journal of the American Chemical Society
• 出版年：2017
• 出版时间：February 1, 2017
• 年：2017
• 卷：139
• 期：4
• 页码：1653-1660
• 全文大小：558K
• ISSN：1520-5126

文摘

Herein, we describe how to utilize stacking interactions to achieve selective supramolecular transformation and molecular Borromean rings (BRs). By using a dinuclear naphthalenediimide (NDI)-based Cp*Rh acceptor and linear bipyridyl ligands, organometallic rectangles featuring dynamic behavior have been constructed. Unique discrete aromatic stacking arrays were formed by inducing pyrene units as guest molecules. The topology of the BRs was realized by the use of a strategically chosen ligand which was capable of participating in D–A interactions and hydrogen bonding, as evidenced from single-crystal X-ray analysis and computational studies. These self-assembly processes underline the advantages of dynamic bonding and π–π stacking interactions, and serve to illustrate a new approach to generating structurally and topologically nontrivial supramolecular architectures.