Pseudorotaxane chemical control

The chemically controlled unthreading of particular [2J-pseudorotaxanes has been investigated. One system employed for a study of this type was composed of a... 

Pseudorotaxanes may be involved in electron transfer processes from three different viewpoints (i) the recognition process between the thread and the macrocycle may result from a charge-transfer interaction, which implies the appearance of characteristic spectroscopic and electrochemical properties (ii) the pseudorotaxane structure can be dethreaded/rethreaded by chemically, electrochemically, and pho-tochemically induced electron transfer processes, which leads to the concept of molecular machines and (iii) dethreading/rethreading of pseudorotaxanes can control the occurrence of charge transfer and electron transfer processes, which offers a route to information processing at the molecular level. 

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