Volume 67 Received 2 April 2011 | ||||||||||
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aMedical College, Northwest University for Nationalities, Lanzhou 730030, Gansu Province, People's Republic of China, and bCollege of Science, Northwest A&F University, Yangling 712100, Shannxi Province, People's Republic of China
Correspondence e-mail: duzt@nwsuaf.edu.cn
In the title molecule, C22H13Br2NO2, the three benzene rings are arranged in a propeller-like fashion around the central malemide ring, making dihedral angles of 48.2 (4), 30.2 (4) and 34.8 (4)° with the malemide ring. The C-C single-bond lengths connecting benzene groups and maleimide are significantly shorter [C-C = 1.468 (9) and 1.478 (9) Å] than a typical Csp3-Csp3 single bond, indicating partial conjugation between the benzene and the maleimide. A weak nonclassical C-H
O hydrogen bond helps to stabilize the crystal structure.
For general background to 3,4-diaryl-substituted maleimide derivatives, see: Fujii et al. (2001
); Onimura et al. (2010
); Shorunov et al. (2006
).
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Data collection: APEX2 (Bruker, 2005
); cell refinement: SAINT (Bruker, 2001
); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008
); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008
); molecular graphics: SHELXTL (Sheldrick, 2008
); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: RK2272 ).
Financial support from the Fundamental Research Funds for the Central Universities in NWSUAF (QN2009048) and the Excellent Young Funds 211020712 is greatly appreciated.
Bruker (2001). SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2005). APEX2. Bruker AXS Inc., Madison, Wisconsin, USA.
Fujii, I., Ohtani, J., Kodama, K., Kunimoto, K. & Hirayama, N. (2001). Anal. Sci. A17, 1471-1472.
Onimura, K., Matsushima, M., Yamabuki, K. & Oishi, T. (2010). Polym. J. 42, 290-297. ![[ChemPort]](../../../../../../logos/chemportborder.gif)
Sheldrick, G. M. (1998). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
![[details]](../../../../../../a/graphics/details.gif)
Shorunov, S. V., Krayushkin, M. M., Stoyanovich, F. M. & Irie, M. (2006). Russ. J. Org. Chem. 42, 1490-1497. ![[ChemPort]](../../../../../../logos/chemportborder.gif)