The asymmetric unit of the title compound, C(12)H(8)N(2)O(6)S, an important diphenyl sulfone derivative, contains one half-mol-ecule; a mirror plane passes through the SO(2) group. The dihedral angle between the two symmetry-related benzene rings is 40.10 (13)°. An intra-molecular C-H⋯O hydrogen bond results in the formation of a five-membered ring, which adopts an envelope conformation.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2962012 | PMC |
| http://dx.doi.org/10.1107/S160053680801917X | DOI Listing |
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