Template-Directed Synthesis of Flexible Porphyrin Nanocage and Nanorings via One-Step Olefin Metathesis

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• 作者：Bin Zhu ; Huanxin Chen ; Wei Lin ; Yang Ye ; Jing Wu ; Shijun Li
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：October 29, 2014
• 年：2014
• 卷：136
• 期：43
• 页码：15126-15129
• 全文大小：425K
• ISSN：1520-5126

文摘

We describe the fabrication of a suite of flexible porphyrin cages and nanorings from a simple tetraalkene-derived zinc porphyrin monomer via a highly efficient template-directed strategy. The zinc porphyrin monomers were preorganized together by coordination with N atoms of multidentate ligands. Subsequent one-step olefin metathesis furnished a bisporphyrin cage, a triporphyrin nanoring, and a hexaporphyrin nanoring. In the case of the hexaporphyrin nanoring, 24 terminal olefins from six porphyrin monomers reacted with each other to form 12 new double bonds, delivering the final product. The triporphyrin and hexaporphyrin nanorings were further employed as hosts to encapsulate C₆₀ and C₇₀.