Mechanochromic cyclodextrins
Mechanochromic cyclodextrins
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DOI：
10.1039/d2cc00363e
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发表时间：
2022-02-08
影响因子：
4.9
通讯作者：
Otsuka, Hideyuki
中科院分区：
文献类型：
--
作者：
Sugita, Yuki;Aoki, Daisuke;Otsuka, Hideyuki
机械致变色环糊精（MCDs），可以产生蓝色的自由基物种，这是非常稳定的对大气中的氧气，因此可以通过电子顺磁共振（EPR）光谱定量表征，合成。MCD具有由夹在两个CD之间的二芳基二苯并呋喃酮骨架机械基团组成的确定结构。研磨测试和EPR测量的MCDs显示其高mechanosoneficiency，反映了固有的刚性的CD和形成的超分子结构的散装。
Mechanochromic cyclodextrins (MCDs) that can generate blue radical species, which are exceptionally stable toward atmospheric oxygen and can thus be quantitatively characterized via 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.