A Self-Assembled Homochiral Radical Cage with Paramagnetic Behaviors

被引：45
|
作者：
Jiao, Tianyu [1 ]
Qu, Hang [2 ,3 ]
Tong, Lu [1 ]
Cao, Xiaoyu [2 ,3 ]
Li, Hao [1 ]
机构：
[1] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China
[2] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, IChEM, Xiamen 361005, Peoples R China
[3] Xiamen Univ, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2021年 / 60卷 / 18期
基金：
中国国家自然科学基金;
关键词：
dynamic covalent chemistry; homochirality; organic cages; organic radicals; self-assembly; SPIN; TETRATHIAFULVALENE; DIMERIZATION; BINDING; CHARGE;
D O I：
10.1002/anie.202100655
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Condensation of an inherently C-3-symmetric polychlorotriphenylmethyl (PTM) radical trisaldehyde with tris(2-aminoethyl)amine (TREN) yields a [4+4] tetrahedral radical cage as a racemic pair of homochiral enantiomers in 75 % isolated yield. The structure was characterized by X-ray crystallography, confirming the homochirality of each cage framework. The homochirality results from intramolecular [CH...pi] and hydrogen-bonding interactions within the cage framework. The four PTM radicals in a cage undergo weak through-space coupling. Magnetic measurements demonstrated that each cage bears 3.58 spins.
引用
收藏
页码：9852 / 9858
页数：7
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