A 1:2 complex of pyromellitic diimide and dimethyl sulfoxide

Andrew D. Bond
2002 Acta Crystallographica Section E  
Key indicators Single-crystal X-ray study T = 180 K Mean '(C±C) = 0.003 A Ê R factor = 0.045 wR factor = 0.108 Data-to-parameter ratio = 16.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e. # 2002 International Union of Crystallography Printed in Great Britain ± all rights reserved Recrystallization of pyromellitic diimide from dimethyl sulfoxide yields a 1:2 complex, C 10 H 4 N 2 O 4 Á2C 2 H 6 SO. In space group P2 1 /c, the
more » ... group P2 1 /c, the diimide molecules form herring-bone-packed layers and are capped at each end by hydrogen-bonded dimethyl sulfoxide molecules. The 1:2 complex is sited on a crystallographic centre of symmetry.
doi:10.1107/s1600536802001162 fatcat:gs764uk3lbcpxeraosmk5fhw5y