Acta Cryst. (2009). E65, m1232 [ doi:10.1107/S1600536809037155 ]
Abstract: The asymmetric unit of the anhydrous title compound, 2Na+·C4H4O62-, contains two sodium cations and one tartrate anion. Each sodium ion is six coordinate, with bonding to six O atoms from both the carboxylate and hydroxyl groups of the anion. A three-dimensional coordination network is formed with sodium ions stacking in layers along the c-axis direction. This network is supported by additional O-HO hydrogen bonds.
Online 19 September 2009
Copyright © International Union of Crystallography