Figure 5
A perspective view of the partial packing of (II) in the unit cell, showing the zwitterionic dimer units and their extension via the tartaric acid molecules. Hydrogen-bonding interactions are shown as broken lines and non-interactive H atoms have been omitted. [Symmetry code: (iv) x + 1, y + 1, z + 1; for other symmetry codes, see Table 2.] |