Investigation of Bis(Perfluoro-tert-Butoxy) Halogenates(I/III).

ABSTRACT: A systematic study of halogenate(I/III) anions with polyatomic ligands is presented. The bis(perfluoro-tert-butoxy) halogenates(I) [X(OC₄ F₉ )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(OC₄ F₉ )₂ ]^- , oxidation with elemental fluorine gave [BrF₂ (OC₄ F₉ )₂ ]^- . Iodide was directly oxidized by ClOC₄ F₉ to the I^III species [I(OC₄ F₉ )₄ ]^- , which is a surprisingly inert anion that might be used as a weakly coordinating anion (WCA) in the future. For [Cl(OC₄ F₉ )₂ ]^- , the decomposition products of the synthetic approaches towards a chlorine(III) system were analyzed.

SUBMITTER: Prohm P 

PROVIDER: S-EPMC9298082 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature