Synthesis and properties of chromium(V) trifluoride oxide CrOF3 and related oxo-anions
Chromium trifluoride oxide has been prepared from CrO3 and BrF3, followed by cautious fluorination. It has been characterised by elemental analysis, i.r., u.v.–visible, e.s.r. spectroscopy, and magnetic susceptibility, and a number of its properties are described. The compound CsCrOF4 has been prepared from Cs2Cr2O7 and BrF3 and similarly characterised, but attempts to isolate salts containing the [CrOF5]2– ion by a variety of methods were unsuccessful.