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Impact of mechanical bonding on the redox-switching of tetrathiafulvalene in crown ether–ammonium [2]rotaxanes
Schroeder, Hendrik V. ;  Sobottka, Sebastian ;  Noessler, Maite ;  Hupatz, Henrik ;  Gaedke, Marius ;  Sarkar, Biprajit ;  Schalley, Christoph A.

HaupttitelImpact of mechanical bonding on the redox-switching of tetrathiafulvalene in crown ether–ammonium [2]rotaxanes
AutorSchroeder, Hendrik V.
AutorSobottka, Sebastian
AutorNoessler, Maite
AutorHupatz, Henrik
AutorGaedke, Marius
AutorSarkar, Biprajit
AutorSchalley, Christoph A.
Seitenzahl7 S.
DDC540 Chemie
Auch erschienen inChemical Science. - 8 (2017), 9, Artikel Nr. 6300
ZusammenfassungSwitchable crown ether–ammonium [2]rotaxanes with a redox-active tetrathiafulvalene (TTF) unit implemented in their wheels were synthesised and fully characterised. Reversible operation in two modes is possible, in which the [2]rotaxane's axle is either charged or neutral. Cyclic voltammetry experiments reveal the effects of mechanical bonding on the electrochemical properties of TTF and show the [2]rotaxanes to perform a distinct function in both modes. In the charged mode, redox-switching is dominated by strong electrostatic repulsion in the [2]rotaxane which subsequently leads to a macrocycle translation along the axle. In the non-charged mode, a selective energetic stabilisation of TTF radical cations is observed, which can be attributed to an interplay of weak electrostatic interactions between wheel and axle.
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Fachbereich/EinrichtungFB Biologie, Chemie, Pharmazie
Erscheinungsjahr2017
Dokumententyp/-SammlungenWissenschaftlicher Artikel
SpracheEnglisch
RechteCreative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License.
Anmerkungen des AutorsDer Artikel wurde in einer reinen Open-Access-Zeitschrift publiziert.
Erstellt am29.09.2017 - 08:51:13
Letzte Änderung29.09.2017 - 08:51:20
 
Statische URLhttp://edocs.fu-berlin.de/docs/receive/FUDOCS_document_000000028057
DOI10.1039/C7SC02694C
Zugriffsstatistik
 

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