MHz unidirectional rotation of molecular rotary motors

被引：175

作者：

Klok, Martin ^{[1
]}

Boyle, Nicola ^{[2
]}

Pryce, Mary T. ^{[2
]}

Meetsma, Auke ^{[1
]}

Browne, Wesley R. ^{[1
]}

Feringa, Ben L. ^{[1
]}

机构：

[1] Univ Groningen, Fac Math & Nat Sci, Labs Organ Chem, Stratingh Inst Chem, NL-9747 AG Groningen, Netherlands

[2] Dublin City Univ, Sch Chem Sci, Dublin 9, Ireland

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 32期

关键词：

D O I：

10.1021/ja8037245

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A combination of cryogenic UV-vis and CD spectroscopy and transient absorption spectroscopy at ambient temperature is used to study a new class of unidirectional rotary molecular motors. Stabilization of unstable intermediates is achieved below 95 K in propane solution for the structure with the fastest rotation rate, and below this temperature measurements on the rate limiting step in the rotation cycle can be performed to obtain activation parameters. The results are compared to measurements at ambient temperature using transient absorption spectroscopy, which show that behavior of these motors is similar over the full temperature range investigated, thereby allowing a maximum rotation rate of 3 MHz at room temperature under suitable irradiation conditions.

引用

页码：10484 / +

页数：3

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