Pröhm , PatrickSchmid, J. R.Sonnenberg, K.Voßnacker, P.Steinhauer, S.Schattenberg, Caspar JonasMüller, RobertKaupp, MartinRiedel, Sebastian2022-12-292022-12-292020-07-150044-8249https://depositonce.tu-berlin.de/handle/11303/17910https://doi.org/10.14279/depositonce-16699A facile one-pot gram-scale synthesis of tetraalkylammonium tetrafluoridochlorate(III) [cat][ClF4] ([cat]=[NEt3Me]+, [NEt4]+) is described. An acetonitrile solution of the corresponding alkylammonium chloride salt is fluorinated with diluted fluorine at low temperatures. The reaction proceeds via the [ClF2]− anion which is structurally characterized for the first time. The potential application of [ClF4]− salts as fluorinating agents is evaluated by the reaction with diphenyl disulfide, Ph2S2, to pentafluorosulfanyl benzene, PhSF5. The CN moieties in acetonitrile and [B(CN)4]− are transferred in CF3 groups. Exposure of carbon monoxide, CO, leads to the formation of carbonyl fluoride, COF2, and elemental gold is dissolved under the formation of tetrafluoridoaurate [AuF4]−.en540 Chemie und zugeordnete Wissenschaftenchlorine fluoridesfluorination reagentsstrong oxidizersArticle1521-3757