Figure 9
Displacement ellipsoid plot of (NH4)2(tiron)·H2O showing neighboring H-bonding interactions among six tiron anions, four ammonium ions, and two water solvate molecules. Ellipsoids are shown at the 50% probability level and hydrogen atoms are shown as open spheres. Atom labels with the suffix B are generated by symmetry about a crystallographic center of inversion (Wyckoff position b), and atom labels with the suffix A are generated by one or more glide operation. |