Table 3. Geometry of lone pair–π-hole interactions (Å, °) in (1) and (2).
N⋯plane is a distance of an N-donor to the mean plane of a nitro group and φ is an angle of the N⋯N axis to the plane of the nitro group.
| Compound | N-Donor | Group | N⋯N | N⋯plane | φ |
|---|---|---|---|---|---|
| (1) | N2 | (C4N7O5O6)xii | 2.997 (3) | 2.980 (2) | 83.9 (2) |
| N3 | (C3N6O3O4)ii | 3.198 (3) | 3.093 (2) | 75.3 (2) | |
| (2) | N2 | (C4N7O5O6)xii | 2.990 (3) | 2.976 (3) | 84.5 (2) |
| N3 | (C3N6O3O4)ii | 3.186 (3) | 3.083 (3) | 75.4 (2) |
Symmetry codes: (ii) −x + {1\over 2}, y + {1\over 2}, −z + {1\over 2}; (xii) −x + {1\over 2}, y − {1\over 2}, −z + {1\over 2}.