Bis(propane-1,3-diammonium) Diphosphate Tetrahydrate

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—H...O-type hydrogen bonds are somewhat stonger than the N—H...O type.

-1