Table 2. Parameters (Å, °) for C—N⋯π contacts in compounds (II) and (III).
Cg1, Cg2 and Cg3 represent the centroids of the rings (N11, C12–C16), (N61, C62–C66) and (N31, C32–C36) respectively.
| Compound | C—N⋯Cg | N⋯Cg | C⋯Cg | C—N⋯Cg | |
|---|---|---|---|---|---|
| (II) | C731—N731⋯Cg1i | 3.186 (5) | 3.640 (4) | 104.0 (3) | |
| C731—N731⋯Cg2i | 3.023 (4) | 4.077 (5) | 152.3 (4) | ||
| C812—N812⋯Cg3ii | 3.105 (14) | 3.873 (16) | 124.9 (13) | ||
| (III) | C711—N711⋯Cg2iii | 3.088 (3) | 4.092 (4) | 145.5 (2) |
Symmetry codes: (i) 1 − x, 1 − y, −z; (ii) 1 − x, 1 − y, 1 − z; (iii) 
− x, − + y, 
− z.