Jump to main content
Jump to site search

Issue 33, 2015
Previous Article Next Article

Redox-dependent self-sorting toggles a rotary nanoswitch

Author affiliations

Abstract

The pyridine–pyrimidine (py–pym) arm as the moving part of the two-state nanomechanical rotary switch [Cu(1)]+ is toggled reversibly between two stations using one-electron oxidation/reduction. In state I, the arm is attached via Cu+ complexation to a sterically encumbered phenanthroline and in state II to a zinc porphyrin station. Toggling is realised by charging and discharging an external input signal, the ferrocene-appended diimine ligand 2. Addition of 2 leads to formation of the intermolecular complex [Cu(1)(2)]+ paralleled by a move of the py–pym arm to the zinc porphyrin station. Upon oxidation at the ferrocenyl unit, 2+ detaches from [Cu(1)(2)]2+ so that [Cu(1)]+ is formed in state I. Switching was ascertained by NMR, UV-Vis spectroscopy and cyclic voltammetry.

Graphical abstract: Redox-dependent self-sorting toggles a rotary nanoswitch

Back to tab navigation

Supplementary files

Publication details

The article was received on 22 May 2015, accepted on 14 Jul 2015 and first published on 27 Jul 2015


Article type: Paper
DOI: 10.1039/C5OB01041A
Org. Biomol. Chem., 2015,13, 8937-8944

  •   Request permissions

    Redox-dependent self-sorting toggles a rotary nanoswitch

    M. Schmittel, S. De and S. Pramanik, Org. Biomol. Chem., 2015, 13, 8937
    DOI: 10.1039/C5OB01041A

Search articles by author

Spotlight

Advertisements