State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.
State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, 345 Lingling Road, Shanghai, 200032, P. R. China.
Chemistry. 2019 Nov 22;25(65):14785-14789. doi: 10.1002/chem.201904082. Epub 2019 Oct 23.
A stepwise self-assembly protocol has been used to synthesize [2]- and [3]catenanes. Firstly, binuclear CpRh/Ir-directed (Cp=pentamethylcyclopentadienyl) pseudorotaxanes were prepared through self-assembly, driven by donor-acceptor interactions between electron-deficient naphthalenediimide (NDI) units and an electron-rich crown ether. Subsequently, the pre-organized pseudorotaxanes were applied as tectons for self-assembly of [2]- and [3]catenanes by combination with very simple linkers. The structures of the catenanes were confirmed by NMR spectroscopy, ESI mass spectrometry, single-crystal X-ray diffraction analysis, and elemental analysis.
已使用逐步自组装方案来合成[2]和[3]轮烷。首先，通过供体-受体相互作用在缺电子萘二酰亚胺（NDI）单元和富电子冠醚之间驱动，制备了双核 CpRh/Ir 导向（Cp=五甲基环戊二烯基）假轮烷。随后，将预组织的假轮烷作为构筑基元，通过与非常简单的连接子结合，用于自组装[2]和[3]轮烷。通过 NMR 光谱、ESI 质谱、单晶 X 射线衍射分析和元素分析确认了轮烷的结构。
