A High-Symmetry Coordination Cage from 38- or 62-Component Self-Assembly

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• 作者：Xiao-Ping Zhou ; Jie Liu ; Shun-Ze Zhan ; Ju-Rong Yang ; Dan Li ; Kwan-Ming Ng ; Raymond Wai-Yin Sun ; Chi-Ming Che
• 刊名：The Journal of the American Chemical Society
• 出版年：2012
• 出版时间：May 16, 2012
• 年：2012
• 卷：134
• 期：19
• 页码：8042-8045
• 全文大小：273K
• 年卷期：v.134,no.19(May 16, 2012)
• ISSN：1520-5126

文摘

Artificial molecular architecture from a large number of subcomponents (>50) via self-assembly remains a formidable challenge for chemists. Reaction of 38 components [14 Ni²⁺ and 24 N-methyl-1-(4-imidazolyl)methanimine] under solvothermal conditions reproducibly leads to the formation of a high-symmetry coordination cage. This polyhedral cage can also be obtained in high yield by self-assembly of 62 commercially available subcomponents (24 methylamine, 24 4-formylimidazole, and 14 Ni²⁺) under mild conditions involving synchronized formation of both dynamic covalent bonds and coordination bonds. Guest molecules (e.g., water, methylamine, and methanol) are randomly imprisoned in the cage.