An oxonium hydrogen sulfate of 3a,6a-diphenylglycoluril.
In the title compound, (5-oxo-3a,6a-diphenylperhydroimidazo[4,5-d]imidazol-2-ylidene)oxonium hydrogen sulfate, C16H15N4O2+ x HSO4-, the asymmetric unit contains a hydrogen sulfate anion and a 3a,6a-diphenylglycoluril oxonium cation. The hydrogen sulfate anion is joined to the oxonium cation via a strong O-H...O hydrogen bond (H...O = 1.69 A). The crystal packing is mainly dominated by interactions involving the hydrogen sulfate anion. The diphenylglycoluril oxonium cations also self-assemble through N-H...O hydrogen bonds, forming molecular chains along the [001] vector. Four intramolecular C-H...N hydrogen bonds are observed, having an S(5) motif.
Huo
Fang Jun
FJ
Institute of Molecular Science, Chemical Biology and Molecular Engineering, Laboratory of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China.
Yin
Cai Xia
CX
Yang
Pin
P