Investigation of Bis(Perfluoro-tert-Butoxy) Halogenates(I/III) |
| |
| Authors: | Patrick Pröhm Willi R Berg Susanne M Rupf Patrick Voßnacker Prof?Dr Sebastian Riedel |
| |
| Institution: | Department of Chemistry and Biochemistry-Inorganic Chemistry, Freie Universität Berlin, Fabeckstrasse 34/36, 14195 Berlin, Germany |
| |
| Abstract: | A systematic study of halogenate(I/III) anions with polyatomic ligands is presented. The bis(perfluoro-tert-butoxy) halogenates(I) X(OC4F9)2]?, X=Cl, Br, I, of chlorine, bromine, and iodine are prepared as their tetraethylammonium salts and characterized with IR, Raman, and NMR spectroscopic methods, as well as single-crystal X-ray diffraction analyses. Spectroscopical data are supported by quantum-chemical calculations. Additionally, the bonding situation of the species in question are analyzed and discussed. Furthermore, the oxidation to the corresponding halogenate(III) derivatives was studied. For Br(OC4F9)2]?, oxidation with elemental fluorine gave BrF2(OC4F9)2]?. Iodide was directly oxidized by ClOC4F9 to the IIII species I(OC4F9)4]?, which is a surprisingly inert anion that might be used as a weakly coordinating anion (WCA) in the future. For Cl(OC4F9)2]?, the decomposition products of the synthetic approaches towards a chlorine(III) system were analyzed. |
| |
| Keywords: | computational chemistry fluorine chemistry halogen chemistry oxidation agents |
|
|
