手性变色环糊精。
Mechanochromic cyclodextrins.
机构信息
Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
JST-PRESTO, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
出版信息
Chem Commun (Camb). 2022 Mar 1;58(18):3067-3070. doi: 10.1039/d2cc00363e.
Mechanochromic cyclodextrins (MCDs) that can generate blue radical species, which are exceptionally stable toward atmospheric oxygen and can thus be quantitatively characterized electron paramagnetic resonance (EPR) spectroscopy, were synthesized. MCDs have a defined structure that consists of a diarylbibenzofuranone skeleton mechanophore sandwiched between two CDs. Grinding tests and EPR measurements of the MCDs revealed their high mechanoresponsiveness, reflecting the inherent rigidity of the CDs and the formation of a supramolecular structure in the bulk.
合成了能够生成蓝自由基的机械变色环糊精（MCD），这些自由基对大气氧具有异常的稳定性，因此可以通过电子顺磁共振（EPR）光谱定量表征。MCD 具有确定的结构，由夹在两个 CD 之间的二芳基双苯并呋喃酮骨架机械敏感器组成。MCD 的研磨测试和 EPR 测量表明它们具有很高的机械响应性，这反映了 CD 的固有刚性和在体相形成超分子结构。
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