Crystal Structure of 2,3-Dimethylphenylammonium Cyclotetraphosphate Dihydrate [C₈H₁₂N]₄P₄O₁₂·2H₂O

Abstract

The title compound, [C₈H₁₂N]₄P₄O₁₂·2H₂O, crystallizes in the monoclinic space group C2/c with unit-cell parameters: a = 34.958(2), b = 8.135(8), c = 15.075(4)Å, β = 107.70(3)°, V = 4084.3(3)ų, Z = 4 and D_x = 1.367 g cm^-3. The atomic arrangement can be described by inorganic layers containing P₄O₁₂ rings and water molecules, parallel to the bc plane and between which are located 2,3-dimethylphenylammonium cations. The grouping is maintained by different types of interactions (electrostatic, H-bonds and van der Waals).