Polysulfates [Sn O3n+1 ]2- : With the [S6 O19 ]2- Anion, has the End been Reached?

ABSTRACT

The S6 O192- ion was obtained both as rubidium and ammonium salt from the reaction of the respective sulfate with SO3 . It is the largest polysulfate ion known to date and exhibits a chain of six vertex-connected [SO4 ] tetrahedra. The unique compound was comprehensively characterized and the bonding within the anion was elucidated by theoretical investigations.