Like no other element, fluorine plays an exceptional role in many areas of chemistry, the life sciences, engineering, industry and modern life. Fluorine reacts with almost every element. Basically fluorine atoms can be incorporated into every organic molecule so that, among all other elements, fluorine can form the most compounds. By substituting H or OH with F in organic molecules, the bond energies and –polarizations are changed and, thus, the properties are considerably altered as well. Consequently, synthetic fluoro-organic substances have gained increasing importance in pharmaceutical active ingredients, plant pesticides, lubricants and corrosion protectants, dyes, liquid crystals, tensides, ionic liquids, and blood substitutes, among others. The thermally and chemically most stable polymers are fluoropolymers and their derivatives. Isomers, such as Nafion®, are very important in fuel cells and electrolytes. Moreover, lower molecular CHF compounds are being produced on a million-tonne scale as substitutes for chlorofluorocarbon (CFC) compounds and are used as refrigerants, propellants, fire retardants and solvents. Without SF6 as an insulating gas, the modern high voltage- and energy technology would be unfeasible; also the production of semiconductor chips would not work without highly pure hydrofluoric acid and fluorine-containing plasma etch gases. Graphite fluoride and electrolytes with fluorinated anions are found as important components in electrochemical energy storage systems.
As the above examples show, fluorochemistry is an interdisciplinary science with linking points to existing GDCh divisions. Thus, there are overlaps, for example, with applied electrochemistry (electrofluorination, electrochemical energy storage systems), Magnetic Resonance Spectroscopy (19F-NMR spectroscopy), solid state chemistry and materials research (complex fluorides, fluorine glasses) and medical chemistry (fluorinated active ingredients, 18F Positron Emission Tomography), to name a few.
For this reason, the GDCh Executive Board agreed to create a work group “Fluorochemistry” under the umbrella of the GDCh in 2008. Details can be found in the bylaws.
zuletzt geändert am: 30.05.2018 09:56 Uhr von N.Bürger