Syntheses and Structural Characterizations of the Cl(V) Coordination Complex, [O2Cl(FXeF)2][AsF6], and β-[ClO2][AsF6]

The synthesis and structural characterization of the first Cl(V) coordination complex of XeF2, [O2Cl(FXeF)2][AsF6], is described. The reaction of α-[ClO2][AsF6] with XeF2 at −78 °C in anhydrous HF (aHF) solvent yields [O2Cl(FXeF)2][AsF6], a rare example of noble-gas difluoride coordination to a main-group Lewis acid center. The low-temperature (LT) phase of β-[ClO2][AsF6] was obtained by recrystallization of α-[ClO2][AsF6] from aHF solvent at …