Citation: Xinyu CHENG, Xinran CHEN, Fei LI, Chen CHEN, NevisNathaniel L., Kai CHEN. 两例同构的七元瓜环基超分子自组装体的合成、Hirshfeld表面分析及其性质[J]. Chinese Journal of Inorganic Chemistry, ;2026, 42(8): 1637-1646. doi: 10.11862/CJIC.20260049 shu

两例同构的七元瓜环基超分子自组装体的合成、Hirshfeld表面分析及其性质

Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, Nanjing 210044, China

Corresponding author: Kai CHEN, kaichen85@nuist.edu.cn
Received Date: 10 February 2026
Revised Date: 22 June 2026

Figures(7)

本工作中，通过引入芳香磺酸配体1，5-萘二磺酸(H₂NDS)作为结构导向剂，与七元瓜环(Q[7])和过渡金属离子Cu²⁺和Cd²⁺在水热条件下反应，成功制备出了2例同构的新型七元瓜环基超分子自组装体：[M(H₂O)₄(Q[7])](NDS)·xH₂O(1：M=Cd，x=14；2：M=Cu，x=15)，并采用单晶X射线衍射、粉末X射线衍射、红外光谱、热重分析和Hirshfeld表面分析等手段对其进行了测试和表征。结果表明，2种自组装体晶体中，Q[7]均是直接与过渡金属离子配位，形成了1∶1型简单配合物Q[7]-M²⁺，而磺酸配体则是完全去质子化，以阴离子形式NDS^2-来保持体系电荷平衡并分布在Q[7]环外侧；二者通过Q[7]外壁上的次甲基和亚甲基与NDS^2-的磺酸根之间的C—H…O氢键、萘环之间的C—H…π作用形成双链型一维超分子链，并进一步通过Q[7]分子间的氢键作用形成了最终的三维超分子框架结构。Hirshfeld表面分析进一步证明了自组装体晶体中含有丰富的弱相互作用，其中氢键作用对于最终三维超分子框架结构的形成起到了主要贡献。此外，荧光测试结果还表明，自组装体1可以通过荧光猝灭的方式选择性检测水体系中的Cu²⁺。
- cucurbit[7]uril,
- 1,5-naphthalenedisulfonic acid,
- outer-surface interactions,
- fluorescence sensing,
- Hirshfeld surface analysis
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