Simple molecular-level machines. Interchange between different threads in pseudorotaxanes

Alberto Credi, Marco Montalti, Vincenzo Balzani, Steven J. Langford, Francisco Raymo, J. Fraser Stoddart

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

In suitably designed supramolecular systems, composed of a macrocycle and two different thread-like compounds, it is possible to choose, by means of chemical inputs, which thread enters the macrocycle's cavity, and it is also possible to cause reversible interchange between the two threads. Two such systems are described. In one of them, the macrocyclic component is 1,5-dinaphtho-38-crown-10, the potential threads are 1,1′-dibenzyl-4,4′-bipyridinium and 2,7-dibenzyldiazapyrenium dications, and the chemical input used is amine/acid. In the other system, the macrocyclic component is the tetracationic cyclophane, cyclobis(paraquat-p-phenylene), the potential threads are tetrathiafulvalene and a 1,5-dioxynaphthalene derivative, and the input is reduction/oxidation. These systems are examples of chemically driven molecular-level mechanical machines.

Original languageEnglish
Pages (from-to)1061-1065
Number of pages5
JournalNew Journal of Chemistry
Volume22
Issue number10
StatePublished - Oct 1 1998
Externally publishedYes

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Rotaxanes
Interchanges
Paraquat
Amines
Derivatives
Oxidation
Acids

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Credi, A., Montalti, M., Balzani, V., Langford, S. J., Raymo, F., & Stoddart, J. F. (1998). Simple molecular-level machines. Interchange between different threads in pseudorotaxanes. New Journal of Chemistry, 22(10), 1061-1065.

Simple molecular-level machines. Interchange between different threads in pseudorotaxanes. / Credi, Alberto; Montalti, Marco; Balzani, Vincenzo; Langford, Steven J.; Raymo, Francisco; Stoddart, J. Fraser.

In: New Journal of Chemistry, Vol. 22, No. 10, 01.10.1998, p. 1061-1065.

Research output: Contribution to journalArticle

Credi, A, Montalti, M, Balzani, V, Langford, SJ, Raymo, F & Stoddart, JF 1998, 'Simple molecular-level machines. Interchange between different threads in pseudorotaxanes', New Journal of Chemistry, vol. 22, no. 10, pp. 1061-1065.
Credi A, Montalti M, Balzani V, Langford SJ, Raymo F, Stoddart JF. Simple molecular-level machines. Interchange between different threads in pseudorotaxanes. New Journal of Chemistry. 1998 Oct 1;22(10):1061-1065.
Credi, Alberto ; Montalti, Marco ; Balzani, Vincenzo ; Langford, Steven J. ; Raymo, Francisco ; Stoddart, J. Fraser. / Simple molecular-level machines. Interchange between different threads in pseudorotaxanes. In: New Journal of Chemistry. 1998 ; Vol. 22, No. 10. pp. 1061-1065.
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