Figure 2
The hydrogen bonding of the fumarate ion in the structure of MiPT (left) and HO-MiPT (right). Displacement ellipsoids are drawn at the 50% probability level. Hydrogen atoms not involved in hydrogen bonds are omitted for clarity. Only one component of the amine disorder is shown. Symmetry codes: (i) x, − y, − + z (ii) x, − y, + z (iii) −1 + x, − y, − + z (iv) − x, − y, 1 − z (v) x, −1 + y, z (vi) 1 − x, 2 − y, −z. |