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Avinash, Dhamija
복잡계 자기조립 연구단
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Remotely controllable supramolecular rotor mounted inside a porphyrinic cage

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Title
Remotely controllable supramolecular rotor mounted inside a porphyrinic cage
Author(s)
Avinash Dhamija; Das, Chandan K.; Young Ho Ko; Younghoon Kim; Rahul Dev Mukhopadhyay; Anilkumar Gunnam; Xiujun Yu; In-Chul Hwang; Schäfer, Lars V.; Kimoon Kim
Publication Date
2022-02
Journal
CHEM, v.8, no.2, pp.543 - 556
Publisher
CELL PRESS
Abstract
© 2021 Elsevier Inc.The confinement of molecular machines into nanostructured cages and controlling their functions by external stimuli holds great potential for the creation of smart functional materials that imitate the embodied intelligence of biological processes. Herein, we report the construction of a supramolecular rotor in a porous Zn-metallated porphyrinic cage (1) by encapsulation of a tetrazine-based linear axle (LA) via metal-ligand coordination bond, followed by post-assembly modification to append a controllable side arm to LA via inverse electron demand Diels-Alder (IEDDA) reaction. While the rotor alone shows nearly no motion, the addition of pyridine derivatives as a zinc coordinating ligand results in both 90° jump-like rotary motion of the rotor and slow tumbling motion of the rotor axle in a stochastic manner. Interestingly, the dual motions of the rotor can be reversibly controlled by the UV and visible light-induced coordination and dissociation of an azopyridine-based ligand with Zn centers as a signal transducer.
URI
https://pr.ibs.re.kr/handle/8788114/11228
DOI
10.1016/j.chempr.2021.12.008
ISSN
2451-9294
Appears in Collections:
Center for Self-assembly and Complexity(복잡계 자기조립 연구단) > 1. Journal Papers (저널논문)
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