Amphiphilic Organic Cages: Self-Assembly into Nanotubes and Enhanced Anion-π Interactions

被引：3

作者：

Li, Zi-Ying ^{[1
]}

Li, Chuanlong ^{[2
]}

Li, Pan ^{[2
]}

Zuo, Yong ^{[2
]}

Liu, Xiaoning ^{[2
]}

Xu, Shijun ^{[1
]}

Zou, Lingyi ^{[2
]}

Zhuang, Qixin ^{[1
]}

Gao, Shan ^{[3
]}

Liu, Xiaoyun ^{[1
]}

Zhang, Shaodong ^{[2
]}

机构：

[1] East China Univ Sci & Technol, Minist Educ, Key Lab Specially Funct Polymer Mat & Related Tec, 130 Meilong Rd, Shanghai 200237, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Frontiers Sci Ctr Transformat Mol, Shanghai Key Lab Elect Insulat & Thermal Aging, 800 Dongchuan Rd, Shanghai 200240, Peoples R China

[3] Shanghai Jiao Tong Univ, Neurol Dept, Affiliated People Hosp 6, South Campus, Shanghai 200240, Peoples R China

来源：

CHEMPLUSCHEM | 2020年 / 85卷 / 05期

基金：

中国国家自然科学基金; 上海市自然科学基金;

关键词：

amphiphiles; anion-pi interactions; organic cages; nanotubes; self-assembly; NANOPARTICLES; VESICLES; DENDRIMERSOMES; BINDING;

D O I：

10.1002/cplu.202000143

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An amphiphilic organic cage was synthesized and used as self-assembly synthon for the fabrication of novel functional supramolecular structures in solution. The transmission electron microscopy (TEM) results showed that this amphiphilic cage self-assembled in aqueous solution into unilamellar nanotubes with a diameter of 29 +/- 4 nm at a concentration of 0.05 mg mL(-1). Interestingly, the self-assembly of this cage significantly enhanced the anion-pi interactions as indicated by a remarkable increasement of association constant (K-a) between Cl- and this amphiphilic cage after self-assembly. In specific, K-a was increased from 223 M-1 for discrete cages in methanol to 6800 M-1 for aggregated cages after self-assembly in water at the same concentration of 2.26x10(-5) M. A mechanism based on a synergistic effect was proposed in order to explain this self-assembly process through enhanced anion-pi interactions.

引用

页码：906 / 909

页数：4

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