Rotaxane Formation from Borate Ion-Containing Crown Ether and Ammonium Ion: Enhancement of Their Association through Ion-Pairing

被引：0
|
作者：
Takizawa, Takumi [1 ]
Ohtani, Kento [1 ]
Naito, Masaya [1 ]
Miyagawa, Shinobu [1 ]
Tokunaga, Yuji [1 ]
机构：
[1] Univ Fukui, Fac Engn, Dept Mat Sci & Engn, Fukui 9108507, Japan
来源：
ORGANIC LETTERS | 2024年 / 26卷 / 38期
关键词：
DESIGN; COMPLEXATION; BINDING;
D O I：
10.1021/acs.orglett.4c03211
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
We synthesized [2]rotaxanes featuring a catechol borate ion-containing crown ether and secondary ammonium ions. These rotaxane components show both ion-ion interactions and hydrogen bonds. X-ray crystallography and NMR spectroscopy allowed elucidation of the rotaxane structure. Moreover, H-1 NMR spectroscopy revealed the rotaxane synthesis can be thermodynamically controlled. The binding affinity between the borate-containing crown ether and ammonium ions is enhanced by ion-pairing.
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收藏
页码：8211 / 8215
页数：5
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