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Figure 1 A view of the two ions in the structure of the title compound. The asymmetric unit comprises one metoprolol cation and a half succinate anion, as the latter lies in a site with two–fold rotational symmetry. Primed atoms are related by the operation 1 − x, y, − z. Displacement ellipsoids are drawn at the 30% probability level. Minor component disordered atoms are denoted by labels with the trailing letter a and the bonds to which those atoms participate are denoted by dashed lines. For the methyl and methylene groups affected by disorder only the hydrogen atoms belonging to the major fractions are shown for clarity. |