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Issue 2, 2001
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Macrocycles, pseudorotaxanes and catenanes containing a pyrrolo-tetrathiafulvalene unit: absorption spectra, luminescence properties and redox behavior

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Abstract

The photophysical properties of (i) three macrocycles (13) of different size, each one incorporating a bis(2,5-dimethylpyrrolo[3,4-d])tetrathiafulvalene (TTFP) and a 1,4-dimethoxybenzene (DMB) electron-donating unit, (ii) the six pseudorotaxanes obtained by threading 13 with the electron acceptors dimethyldiazapyrenium (DMDAP2+) and dibenzyldiazapyrenium (DBDAP2+) and (iii) the three catenanes obtained by interlocking 13 with the electron-accepting cyclophane cyclobis(paraquat-p-phenylene) (CBPQT4+) have been investigated. The monooxidized and dioxidized species obtained by oxidation with Fe(III) of the TTFP unit contained in the above compounds have also been studied. The redox-driven dethreading/rethreading process has been investigated in the case of the pseudorotaxane based on the macrocycle 2 and the DMDAP2+ dication. In the catenanes, oxidation of the TTFP unit causes strong spectral changes, but does not promote disruption of the interlocked structures.

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Publication details

The article was received on 25 Sep 2000, accepted on 10 Nov 2000 and first published on 19 Jan 2001


Article type: Paper
DOI: 10.1039/B007836K
Citation: New J. Chem., 2001,25, 293-298
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    Macrocycles, pseudorotaxanes and catenanes containing a pyrrolo-tetrathiafulvalene unit: absorption spectra, luminescence properties and redox behavior

    R. Ballardini, V. Balzani, A. D. Fabio, M. T. Gandolfi, J. Becher, J. Lau, M. B. Nielsen and J. Fraser Stoddart, New J. Chem., 2001, 25, 293
    DOI: 10.1039/B007836K

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