Beitrage zur chemie des bromtrifluorids 1. Teil pentafluorphenylbrom(III)difluorid und -bis (trifluoracetat)

Abstract

BrF 3 reacts with C 6F 5SiF 3 to form C 6F 5BrF 2, a volatile, colourless, and thermally stable solid, which melts at 35 – 36 °C without decomposition. Its chemical and spectroscopic properties are in contrast to the product described by Sams [1]. The reactivity of the BrF-bonds in C 6F 5BrF 2 allows displacement of fluorine by groups stable against oxidation. With trifluoroacetic acid anhydride C 6F 5Br[O(O)CCF 3] 2 is formed as the first stable carboxylate of Br(III).