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Figure 2 C—O⋯π stacking interactions between CO groups of carboxylates with aromatic rings of (pydc)2– units. The C—O⋯π distances (measured to the center of phenyl ring) are 3.134 (5) Å for C6—O2⋯Cg1 (1 + x, y, z), 3.245 (5) Å for C21—O10⋯Cg2 (x, y, z) and 3.255 (5) Å for C13—O6⋯Cg3, [Cg1, Cg2 and Cg3 are the centroids of N1/C1-C5, N2/C8-C12 and N3/C15-C19 rings, respectively]. |