Krypton fluoride chemistry; a route to AuF 5 , KrF + AuF 6 – , Xe 2 F 3 + AuF 6 – , and NO + AuF 6 – : the KrF + –XeOF 4 system

Pyrolysis of newly prepared KrF+AuF6– gives AuF5 which reacts with XeF2 to produce Xe2F3+AuF6– and NOF to give NO+AuF6–; Kr+AuF6– is a powerful oxidative fluorinating agent with respect to O2 and Xe and the reaction of KrF+ with excess XeOF4 gives XeOF4.XeF5+ and O2+ salts, not XeOF5+ as reported previously.