Unidirectional rotary motion in a metal-organic framework

被引：180

作者：

Danowski, Wojciech ^{[1
]}

van Leeuwen, Thomas ^{[1
]}

Abdolahzadeh, Shaghayegh ^{[2
]}

Roke, Diederik ^{[1
]}

Browne, Wesley R. ^{[1
,2
]}

Wezenberg, Sanded ^{[1
]}

Feringa, Ben L. ^{[1
]}

机构：

[1] Univ Groningen, Stratingh Inst Chem, Ctr Syst Chem, Groningen, Netherlands

[2] Univ Groningen, Stratingh Inst Chem, Mol Inorgan Chem Grp, Groningen, Netherlands

来源：

NATURE NANOTECHNOLOGY | 2019年 / 14卷 / 05期

基金：

欧洲研究理事会;

关键词：

ASSISTED LINKER EXCHANGE; DE-NOVO SYNTHESIS; MOLECULAR MOTORS; HELICAL POLYMER; LIGHT; DYNAMICS; CATENATION; CHEMISTRY; MACHINES; ROTATION;

D O I：

10.1038/s41565-019-0401-6

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Overcrowded alkene-based light-driven molecular motors are able to perform large-amplitude repetitive unidirectional rotations. Their behaviour is well understood in solution. However, Brownian motion precludes the precise positioning at the nanoscale needed to harness cooperative action. Here, we demonstrate molecular motors organized in crystalline metal-organic frameworks (MOFs). The motor unit becomes a part of the organic linker (or strut), and its spatial arrangement is elucidated through powder and single-crystal X-ray analyses and polarized optical and Raman microscopies. We confirm that the light-driven unidirectional rotation of the motor units is retained in the MOF framework and that the motors can operate in the solid state with similar rotary speed (rate of thermal helix inversion) to that in solution. These imoto-MOFs' could in the future be used to control dynamic function in crystalline materials.

引用

页码：488 / +

页数：8

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