Crystal structure of a novel bis(guanidiniums) compound incorporated by sulfate anion

Crystal structure of a novel bis(guanidiniums) compound I by sulfate anion and water, C11H20N6O . SO4.H2O, was measured by X-ray crystallographic anal ysis with an "imaging plate" method. It possesses space group P2(1)/c, with a = 7.6433(15), b = 19.447(4), c = 12.115(2) Angstrom, beta = 107.81(3)deg rees, and phi (calc) = 1.420 mg/m(3) for Z = 4. Crystal data indicate that the architecture network is formed through hydrogen bonds, electrostatic in teractions, and arene-arene stacking interaction among the bis(guanidiniums ) compound, the sulfate anion and water molecule.