Formation of the dixenon cation, Xe2+, in fluoroantimonate(V) media by oxidation–reduction methods: spectroscopic properties of the ion

Abstract

A green species has been generated both by oxidation of gaseous xenon with a dioxygenyl salt and by reduction in antimony pentafluoride solution of the XeF⁺ cation, e.g. with water or a suitable metal; the Raman, u.v.-visible and e.s.r. spectra of the product are all consistent with the identity Xe₂⁺, representing the first homonuclear noble-gas cation to be characterized in the condensed phases.