Figure 3
Views of the intra- and intermolecular C—H⋯π interactions in (I), showing two different hydrogen-bonded chains, viz. (a) along the [100] direction (interactions are shown as dashed open lines) and (b) along the [110] direction (interactions are shown as dashed solid lines). The ErIII atoms labelled with the suffixes A, B, C, D and E are generated by the symmetry operations (−x + 1, −y + 1, −z + 1), (x − 1, y, z), (−x, −y + 1, −z + 1), (x − 1, y − 1, z) and (−x, −y, −z + 1), respectively. Only H atoms involved in the interactions are shown for clarity. |