| Popis: |
In the title compound, C4H10NO3+·C4H3O4−, the threonine molecule exists as a cation and the maleic acid molecule exists in the mono-ionized state. In the semi-maleate ion, there is an intramolecular O—H⋯O hydrogen bond. The molecules aggregate into infinite parallel layers which extend in the (0\overline 22) plane. These layers have no hydrogen-bonded interactions between them, only van der Waals interactions. The semi-maleate ion is essentially planar. The structure is stabilized by O—H⋯O and N—H⋯O hydrogen bonds, in addition to weak C—H⋯O interactions. No classical head-to-tail hydrogen bonds are observed. |
Plný text