Photomechanically Induced Magnetic Field Response by Controlling Molecular Orientation in 9‐Methylanthracene Microcrystals,Angewandte Chemie International Edition

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Photomechanically Induced Magnetic Field Response by Controlling Molecular Orientation in 9‐Methylanthracene Microcrystals
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-05-09 , DOI: 10.1002/anie.201802423
Fei Tong ₁ , Wenjing Xu ₁ , Maram Al-Haidar ₂ , Daichi Kitagawa ₃ , Rabih O. Al-Kaysi ₂ , Christopher J. Bardeen ₁

Affiliation

A surfactant‐assisted seeded‐growth method is used to form single‐crystal platelets composed of 9‐methylanthracene with two different internal molecular orientations. The more stable form exhibits a photoinduced twisting, as observed previously for 9‐methylanthracene microribbons grown by the floating drop method. However, the newly discovered elongated hexagonal platelets undergo a photoinduced rolling‐up and unrolling. The ability of the rolled‐up cylindrical shape to trap superparamagnetic nanoparticles enables it to be carried along in a magnetic field gradient. The new photoinduced shape change, made possible by a novel surfactant‐assisted crystal growth method, opens up the possibility of using light to modulate the crystal translational motion.

中文翻译：

通过控制9-甲基蒽微晶的分子取向来光机械诱导的磁场响应

使用表面活性剂辅助的种子生长法形成由具有两个不同内部分子取向的9-甲基蒽组成的单晶血小板。如先前通过浮滴法生长的9-甲基蒽微带所观察到的，更稳定的形式表现出光致扭曲。但是，新发现的细长的六角形血小板经历了光诱导的卷起和展开。卷起的圆柱形捕获超顺磁性纳米颗粒的能力使其能够在磁场梯度中随身携带。通过新型的表面活性剂辅助晶体生长方法可以实现新的光诱导形状改变，从而开辟了利用光来调节晶体平移运动的可能性。

更新日期：2018-05-09

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