Figure 2
Intermolecular N—H⋯O and O—H⋯O hydrogen-bonding interactions between the 1-hydroxy-2-methylpropan-2-aminium cations and the carbonate anions, lying on (left) the ab plane of polymorph II and (right) the (011) plane of polymorph I. The H atoms of CH3 and CH2 groups have been omitted for clarity. Hydrogen bonds are represented by dashed lines. |