Melemium Hydrogensulfate H3C6N7(NH2)3(HSO4)3 – the First Triple Protonation of Melem

Andreas Sattler (1) , Wolfgang Schnick (1)

1 Chemistry

We have synthesized melemium hydrogensulfate H3C6N7(NH2)3(HSO4)3 by reaction of melem with 70 % sulfuric acid. The crystal structure was elucidated by single-crystal XRD (P21/n (no. 14), Z = 4, a = 10.277(2), b = 14.921(3), c = 11.771(2) Å, β = 99.24(3)°, V = 1781.5(6) Å3). H3C6N7(NH2)3(HSO4)3 is the first compound displaying a triple protonation of melem. In this contribution an overview of accessible melemium sulfates depending on the concentration of sulfuric acid is given. Two additional melemium sulfates were identified this way.

Mots clés: Physical Sciences

Andreas Sattler, Wolfgang Schnick. Melemium Hydrogensulfate H3C6N7(NH2)3(HSO4)3 – the First Triple Protonation of Melem. Journal of Inorganic and General Chemistry / Zeitschrift für anorganische und allgemeine Chemie, 2010, 636 (15), pp.2589. ⟨10.1002/zaac.201000246⟩. ⟨hal-00574815⟩