Recent Advances in the Synthesis and Characterisation of the O2-Like Paramagnetic Solid (M)2[M = AsF6(1), Sb2F11] Containing the Diradical

Abstract

Abstract The AsF6 − and Sb2F11 − salts of (1), prepared by the reaction of S8(AsF6), S4(AsF6), and (CN)2 in liquid SO2 and (1) (AsF)2 and an excess of antimony pentafluoride in liquid SO2 respectively, is the only known sterically unhindered non-metal triplet state species other than dioxygen, that contains two unpaired electrons in the solid state (μ = 2.6 μB both salts) at room temperature.