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Weakly Coordinating Anions (WCAs)
Weakly coordinating anions (WCAs) are used since of their ability to stabilize reactive cations and their weak interactions
with these because of their low nucleophilicity. Electron transfer reactions can become electrochemically reversible or
communication between two redox active species in the same molecule may be observable. In the field of electrosynthesis,
WCAs are used to stabilize positively charged reactive intermediates.
We investigate the effects of WCAs in multi-electron transfer reaction systems such as the oxidation of bisferrocene derivatives
or the reduction of highly charged bis-viologen species in the context of an electrochemical communication between the redox
centers. We are also interested in the stabilization of reactive intermediates generated during the oxidation of metal-organic
complexes.
Coworkers in this project
Michael Speidel, Rebecca Klinkhammer, Monika Passon, Kai Marcel Müller und Adrian Ruff
Oral presentations
J. Janisch, R. Klinkhammer, A. Ruff and B. Speiser, "Separation of Two One-Electron Transfer Redox
Couples in Symmetrical Bisferrocenes", 63rd Annual Meeting of ISE, Prague, Czech Republic, 2012
Publications from this project
M. Passon, A. Ruff, P. Schuler, B. Speiser und
W. Leis, Redox behaviour of some asymmetrically substituted viologens
and an alkyl bridged bis-viologen in non-aqueous solvents: a voltammetric and spectroscopic investigation, J. Solid State Electrochem.
19, 85-101 (2015), DOI 10.1007/s10008-014-2629-2
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