1414867-72-3Relevant academic research and scientific papers
Redox-dependent self-sorting toggles a rotary nanoswitch
Schmittel, Michael,De, Soumen,Pramanik, Susnata
, p. 8937 - 8944 (2015/08/24)
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.
A trio of nanoswitches in redox-potential controlled communication
Pramanik, Susnata,De, Soumen,Schmittel, Michael
supporting information, p. 13254 - 13257 (2015/05/20)
A potential-controlled two-step bidirectional communication protocol between the nanoswitches [Cu(1)]+, 2 and 3 is set up, in which ligand followed by metal-ion oxidation drives two subsequent metal ion translocations (self-sorting) changing th
A reversible nanoswitch as an ON-OFF photocatalyst
Schmittel, Michael,Pramanik, Susnata,De, Soumen
supporting information, p. 11730 - 11732 (2013/01/15)
The two states of a new nanomechanical switch were quantitatively and reversibly populated in several subsequent switching cycles using either Cu + or cyclam as chemical inputs. State II was demonstrated to cis-trans isomerise diazastilbene upo
