Cj. Burchell et al., A three-dimensional hydrogen-bonded framework in 4,4 '-trimethylenedipiperidinium-2,5-dicarboxybenzene-1,4-dicarboxylate-water (1/1/1), ACT CRYST C, 57, 2001, pp. 92-94
The title compound is a salt, C13H28N22+.C10H4O82-.H2O. In the anion, there
are two short intramolecular hydrogen bonds [O . . .O 2.395 (2) and 2.383
(2) Angstrom; O . . .H . . .O 175 and 172 degrees]. Pairs of anions and pai
rs of water molecules are linked by further O-H . . .O hydrogen bonds [O .
. .O 2.756 (2) and 2.980 (2) Angstrom; O-H . . .O 171 and 175 degrees] into
cyclic centrosymmetric R-6(6)(16) aggregates; these aggregates are linked
via the cations into a three-dimensional framework by means of four distinc
t N-H . . .O hydrogen bonds [N . . .O 2.787 (2)- 3.204 (2) Angstrom; N-H .
. .O 148-173 degrees].