Acta Cryst. (2011). E67, o87-o88 [ doi:10.1107/S160053681005110X ]
Abstract: The asymmetric unit of the title compound, 2C14H13N2+·2C4H5O6-·9H2O, contains two cations and two anions in addition to nine molecules of water. Each of the hydrogen tartrate anions is hydrogen bonded to itself by translation along  in a head-to-tail fashion via a short hydrogen bond with donor-acceptor distances of 2.473 (4) and 2.496 (4) Å. A large number of intermolecular O-HO, N-HO and C-HO hydrogen-bonding interactions, as well as - stacking [centroid-centroid distances in the range 3.642 (3) to 3.866 (3) Å], play an important role in the crystal structure.
Online 11 December 2010
Copyright © International Union of Crystallography