Fig. 1. Crystal structures of SnS₂, Pnma and π-cubic SnS and Sn₂S₃, viewed along the crystallographic a (SnS₂), c (both SnS phases) and b axes (Sn₂S₃). The Sn and S atoms are coloured grey and yellow, respectively. These snapshots were generated with the VESTA software.⁵³ .