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Syntheses, Crystallization, and Spectroscopic Characterization of 3,5-Lutidine N-Oxide Dehydrate
Published on: April 24, 2018
An oxonium hydrogen sulfate of 3a,6a-diphenylglycoluril
Fang Jun Huo1, Cai Xia Yin, Pin Yang
1Institute of Molecular Science, Chemical Biology and Molecular Engineering, Laboratory of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China.
Abstract:
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.
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