Buy article online - an online subscription or single-article purchase is required to access this article.
organic compounds
A new organic diphosphate compound, 2C3H12N22+.P2O74−.4H2O, has a non-acidic anion and a mineral-like layered structure similar to the monophosphate, which has an acidic anion. Layers are formed through hydrogen bonding between the water molecules and cohesion between the layers is the result of a hydrogen-bonding network involving NH3 groups and three aggregated water molecules. The XXX from OW—HO-type hydrogen bonds are somewhat stonger than the N—HO type.