q&more
My watch list
my.chemie.de  
Login  

News

Innocent and highly oxidizing

Chemists produce new oxidants as a tool for preparative chemistry

Photo by Bill Oxford on Unsplash

The new reagent allows for the synthesis of reactive species in standard laboratory solvents that were previously difficult or inaccessible.

04-Jun-2020: Chemical oxidation, the selective removal of electrons from a substrate, represents one of the most important transformations in chemistry. However, most common oxidants often show disadvantages such as undesired side reactions. The chemist Marcel Schorpp and colleagues from the group of Prof. Dr. Ingo Krossing from the Institute of Inorganic and Analytical Chemistry at the University of Freiburg have successfully generated a novel and extremely stable perfluorinated radical cation. In cooperation with Stephan Rein from the group of Prof. Dr. Stefan Weber from the Institute of Physical Chemistry, this radical was characterized in detail.

The new reagent proves to be an extremely strong oxidizing agent and allows for the synthesis of reactive species in standard laboratory solvents that were previously difficult or inaccessible - for example, the oxidation of decamethylferrocenium, which is a long known and very stable species to the corresponding highly reactive dication in the presence of carbon monoxide. With this newly described reagent, many of the above mentioned disadvantages of other oxidants can be circumvented, since it reacts as an innocent oxidizing agent: only taking up electrons from the substrate without showing further reactivity.

Due to the broad applicability described in the article, this reagent is interesting for inorganic, organic chemistry as well as electrochemical or materials science research questions. “In the future, for example, it might be possible to embed it in a polymer to be used as cathode material for organic batteries,” explains Schorpp.

Original publication:
Schorpp, M., Heizmann, T., Schmucker, M., Rein, S., Weber, S., Krossing, I.; "Synthesis and Application of a Perfluorinated Ammoniumyl Radical Cation as a Very Strong Deelectronator"; Angewandte Chemie. Int. Ed.; 2020, 59, 9453.

Facts, background information, dossiers

More about Uni Freiburg

  • News

    Programming with the Light Switch

    In the development of autonomous systems and materials, self-assembling molecular structures controlled by chemical reaction networks are increasingly important. However, there is a lack of simple external mechanisms that ensure that the components of these reaction networks can be activate ... more

    Coronavirus data analysis

    Dr. Wolfgang Maier and Dr. Björn Grüning from the University of Freiburg, together with researchers from universities in Belgium, Australia and the USA, have reviewed the previously available data on sequences of the novel coronavirus and published their analyses on the open source platform ... more

    Social control among immune cells improves defence against infections

    A simple mechanism, previously known from bacteria, ensures that the immune system strikes a balance between the rapid expansion of immune cells and the prevention of an excessive self-damaging reaction after an infection. This has now been deciphered by scientists at the University of Frei ... more

  • q&more articles

    Modular biofactories at the cellular level

    Despite his love for complex molecular architectures, this „dyed-in-the-wool“ bio-organic chemist has never embraced the conventional segregation of synthetic polymers and bio­logical macromolecules. All molecules are composed of atoms, after all. Why make an artificial distinction? Why not ... more

    Bookmarks

    From a pluripotent stem cell a muscle cell or a liver cell can form, which despite their difference in appearance, are genetically identical. From one and the same genotype, therefore, the most diverse phenotypes can be formed – epigenetics is making it possible! It is a very exciting area ... more

  • Authors

    Dr. Stefan Schiller

    Stefan M. Schiller studied chemistry at Gießen (Mainz, Germany) and the University of Massachusetts, majoring in macromolecular chemistry and biochemistry. For his doctorate in biomimetic membrane systems he worked till 2003 at the Max Planck Institute for Polymer Research in Mainz. Researc ... more

    Julia M. Wagner

    Julia M. Wagner studied pharmacy in Freiburg (licensure 2008). Since 2008 she is a PhD student and research assistant in the group of Professor Dr. M. Jung. Her research focuses ­on the cellular effects of histone deacetylase inhibitors. more

    Prof. Dr. Manfred Jung

    Manfred Jung is a graduate of the University of Marburg, where he studied pharmacy (licensure  1990) and obtained his doctorate in pharmaceutical chemistry with Prof. Dr. W. Hanefeld. After a post-doctorate at the University of Ottawa, Canada, he began with independent research in 1994 ­at ... more

q&more – the networking platform for quality excellence in lab and process

The q&more concept is to increase the visibility of recent research and innovative solutions, and support the exchange of knowledge. In the broad spectrum of subjects covered, the focus is on achieving maximum quality in highly innovative sectors. As a modern knowledge platform, q&more offers market participants one-of-a-kind networking opportunities. Cutting-edge research is presented by authors of international repute. Attractively presented in a high-quality context, and published in German and English, the original articles introduce new concepts and highlight unconventional solution strategies.

> more about q&more

q&more is supported by:

 

Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE