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Figure 1 The cyclic dimer, built up from two dpmaH+ cations, is hydrogen-bonded to neighbouring [PdCl4]2− anions. Ellipsoids are drawn at the 50% probability level. The graph-set descriptors (10) and (11) are indicated by green and red numbers. [Symmetry codes: (') −x, −y, −z; ('') −x, −y, 1-z.] |