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Figure 5 C—H⋯π stacking interactions between the C–H group of the (pydc)2– fragments and the aromatic rings of the (4,4'-bipyH)+ units. The C—H⋯π distance (measured to the center of phenyl ring) is 2.89 Å for C5—H5⋯Cg1 (1-x, 1-y, 1-z). π-π stacking interactions between the aromatic rings of the (4,4'-bipyH)+ fragments with distance of 3.436 (2) Å for Cg1⋯Cg1A (−x, 1-y, 1-z) [Cg1 and Cg1A are the centroids of the rings N2/C11-C15 and N2A/C11A-C15A, respectively]. |