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Acta Cryst. (2006). E62, o2714-o2716 [ doi:10.1107/S1600536806020253 ]
Abstract: The title compound, C9H10N2O5, crystallizes with two crystallographically independent molecules in the asymmetric unit. In the crystal structure, the nitropyridone rings are connected by weak C-H
O interactions, forming sheet-like arrays, which are in turn linked by C-H![[pi]](/logos/entities/pi_rmgif.gif)
and - interactions between the nitropyridone rings on one side, and by C-HO and van der Waals interactions between the ester groups on the other.
Online 14 June 2006
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