Regulated Single‐Axis Rotations of a Carbonaceous Guest in a van der Waals Complex with an Entropy Cost
作者:Taisuke Matsuno、Yusuke Nakai、Yutaka Maniwa、Maki Someya、Sota Sato、Hiroyuki Isobe
DOI:10.1002/asia.201901638
日期:2020.1.17
host-guest complex assembled solely by nondirectional van der Waals forces, unique motions of the guest, such as solid-state inertial rotations, emerge. The regulation of dynamic motions is an important element to be explored for novel functions of such complexes, which may be seemingly difficult to achieve because of the nondirectionality of the assembling forces. A regulated, single-axis rotation was made
在仅由无方向范德华力组装而成的紧凑的主客体中,会出现客体的独特运动,例如固态惯性旋转。动态运动的调节是这种复合物的新颖功能要探索的重要元素,由于组装力的非方向性,这似乎很难实现。通过选择管状主体中客体的合适形状,可以进行调节的单轴旋转。具体地,使椭圆形的客体沿着主体的圆柱轴线竖立,因此导致客体在固体中的单轴旋转。对于固态旋转,旋转频率相当高,但被抑制到10 GHz,是球形客体各向同性旋转的1/20。