Volume 65 Received 28 July 2009 | ||||||||||
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aCollege of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, People's Republic of China
Correspondence e-mail: lyhxxjbm@126.com
In the title compound, C14H12N2O6, the half molecule in the asymmetric unit of the cell is completed by a crystallographic twofold rotation axis, and the two benzene rings of the complete molecule make a dihedral angle of 60.5 (3)°. Furthermore, intermolecular weak C-H
O hydrogen bonds link adjacent molecules, forming a two-dimensional sheet. These sheets are stablized by face-to-face weak
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contacts [centroid-centroid distance = 3.682 (1) Å] between the nearly parallel [dihedral angle = 0.12 (7)°] benzene rings of the neighboring molecules, resulting in a three-dimensional network.
For the synthesis of the title compound, see: Chen et al. (2001
). For asymmetric synthesis using chiral ligands with C2 symmetry, see: Jiang et al. (2001
); García et al. (2002
). For synthetic methods for chiral compounds, see: Brunel (2005
); Kocovský et al. (2003
). For related biphenyl structures, see: Fischer et al. (2007
). For related structural data see: Yang et al. (2005
).
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Data collection: APEX2 (Bruker, 2004
); cell refinement: SAINT (Bruker, 2004
); 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
) and PLATON (Spek, 2009
); software used to prepare material for publication: SHELXL97 and PLATON.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SI2193 ).
This work was supported by the Youth Foundation of Luoyang Normal University (No. 10000409).
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![[details]](../../../../../../e/graphics/details.gif)
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![[details]](../../../../../../d/graphics/details.gif)
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