文献类型：期刊文献

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

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

年份：2020

卷号：85

期号：5

起止页码：906

外文期刊名：CHEMPLUSCHEM

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000536506200014)】；

语种：英文

外文关键词：amphiphiles; anion-pi interactions; organic cages; nanotubes; self-assembly

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.