Host–Guest Chirality Interplay: A Mutually Induced Formation of a Chiral ZMOF and Its Double-Helix Polymer Guests

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• 作者：Xiaolong Luo ; Yu Cao ; Tao Wang ; Guanghua Li ; Jiangang Li ; Yonggang Yang ; Zhongxuan Xu ; Jian Zhang ; Qisheng Huo ; Yunling Liu ; Mohamed Eddaoudi
• 刊名：Journal of the American Chemical Society
• 出版年：2016
• 出版时间：January 27, 2016
• 年：2016
• 卷：138
• 期：3
• 页码：786-789
• 全文大小：399K
• ISSN：1520-5126

文摘

A novel homochiral zeolite-like metal–organic framework (ZMOF), [(Cu₄I₄) (dabco)₂]·[Cu₂(bbimb)]·3DMF (JLU-Liu23, dabco =1,4-diazabicyclo[2.2.2]-octane, H₂bbimb =1,3-bis(2-benzimidazol)benzene, DMF = N,N-dimethylformamide), has been successfully constructed to host unprecedented DNA-like [Cu₂(bbimb)]_n polymers with double-helicity. The host–guest chirality interplay permitted the induced formation of an unusual gyroid MOF with homochirality and helical channels in the framework for the first time, JLU-Liu23. Importantly, the enantiomeric pairs (23P, 23M) can be promoted and isolated in the presence of appropriate chiral inducing agents, affording enantioselective separation of chiral molecules as well as small gas molecules.