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Issue 1, 2006
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Structural control at the organic–solid interface

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Abstract

The structure–function relationships of a series of bistable [2]rotaxane and [2]pseudorotaxane-based devices have been evaluated across different length scales. The switching characteristics of bistable [2]rotaxanes and self-assembled [2]pseudorotaxanes, which can be controlled chemically, electrochemically, or photochemically, enable them to function as prototypes of molecular machines. The switching processes are operative, not only in solution, but also in a wide variety of condensed phases. The universality of the switching mechanism demonstrates that these functional organic materials can be incorporated onto solid metallic and inorganic supports for device applications, despite the fact that interactions at the organic substrate interface can influence molecular structure and function. Through iterative design–analysis feedback loops that focus upon fine-tuning device performance, based on molecular structures and molecule-substrate interactions, the fabrication of functioning micro-actuators, nanovalves and light-harvesting devices has been achieved.

Graphical abstract: Structural control at the organic–solid interface

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Article information


Submitted
12 Oct 2005
Accepted
02 Nov 2005
First published
15 Nov 2005

J. Mater. Chem., 2006,16, 32-44
Article type
Feature Article

Structural control at the organic–solid interface

A. B. Braunschweig, B. H. Northrop and J. F. Stoddart, J. Mater. Chem., 2006, 16, 32
DOI: 10.1039/B514487F

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