Mechanism of the Stoddart-Heath bistable rotaxane molecular switch

被引:75
作者
Deng, WQ [1 ]
Muller, RP [1 ]
Goddard, WA [1 ]
机构
[1] CALTECH, Mat & Proc Simulat Ctr, Pasadena, CA 91125 USA
关键词
D O I
10.1021/ja036498x
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We use quantum mechanics to characterize the structure and current-voltage performance of the Stoddart-Heath rotaxane-based programmable electronic switch. We find that the current when the ring is on the DNP is 37-58 times the current when the ring is on the TTF, in agreement with experiment (ratio of 10-100). This establishes the basis for iterative experimental-theoretical efforts to optimize systems for molecule-based electronics which we illustrate by predicting the effect of adding a group such as CN to the rotaxane. Copyright © 2004 American Chemical Society.
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收藏
页码:13562 / 13563
页数:2
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