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Repozytorium publikacji
Politechniki Gdańskiej

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Preparation and X-ray structures of selected aminium thiosulfates

Various types of aminium thiosulfates (1–6), including hydrates and mixed salts, have been obtained by the reaction of ammonium thiosulfate with amines. Tertbutylamine, cyclo-hexylamine and 1,6-diaminohexane gave crystals of (t-BuNH3)2S2O3·H2O (1), (c-C6H11NH3)2S2O3 (3) and {(NH4)2(H3NC6H12NH3)(S2O3)2} (6), respectively, which were investigated by X-ray structural analysis. Extensive hydrogen bonding of the N-H…O and N-H…S type is responsible for formation of alternating hydrophilic and hydrophobic layers in the solid-state. In the case of (1), the layers are separated by strata of weak van der Waals interactions, while (3) consists of hydrogen-bonding stabilized rods along the b direction. The structure of (6) contains 3D covalent bonding plus hydrogen bonding networks with no separable substructures. Solubility and thermal decomposition are also briefly discussed.

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