Received 8 May 2008
In the title compound, C11H10NO3+·NO3-·H2O, the planar 8-carboxymethoxyquinolinium cation, the nitrate anion and the water molecule are dimerized by hydrogen bonds into square building-block units, and then further assembled into two-dimensional gently undulating supramolecular layers.
Data collection: SMART (Bruker, 1998); cell refinement: SAINT (Bruker, 1999); 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: RN2043 ).
The work was supported by the National Natural Science Foundation of China (grant No. 20772037)and the NSF of Guangdong Province, China (grant No. 06025033).
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