ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, vol.61, 2005 (SCI-Expanded)
In the title compound, C21H22N2O6 center dot H2O, the pyrazolium ring is in an envelope conformation. In the crystal structure, intermolecular O-H center dot center dot center dot O hydrogen bonds form molecular tapes along [001]. In addition, weak C-H center dot center dot center dot O and a C-H center dot center dot center dot pi interaction link molecules into a three-dimensional network.