Competing hydrogen-bond acceptors in ethyl­enediammonium oxotrithio­tungstate(VI)

The structure of the title compound, (C₂H₁₀N₂)[WOS₃], consists of ethyl­ene­diammonium dications and tetra­hedral [WOS₃]²⁻ dianions, which are linked with the aid of four varieties of hydrogen bond, namely N—H...O, N—H...S, C—H...O and C—H...S. The strength and number of these hydrogen bonds affect the W—O and W—S bond distances.