“…99 (Trimethylsilyl)methylhalonium ions 134 have also been obtained under stable ion conditions and characterized by 1 H, 13 C, and 29 Si NMR spectroscopy. Minkwitz and Gerhard 355 have reported the synthesis of the AsF 6 À and Sb 2 F 11 À salts of cation 129 (X ¼ Br) by reacting bromine with CH 3 OSO þ MF 6 À (M ¼ As, Sb). Minkwitz and Gerhard 355 have reported the synthesis of the AsF 6 À and Sb 2 F 11 À salts of cation 129 (X ¼ Br) by reacting bromine with CH 3 OSO þ MF 6 À (M ¼ As, Sb).…”