| Bond | Bond length (˚A) | Bond | Bond angle (˚) |
| O1-C9 | 1.214 (6) | N3-N2-C9 | 119.7 (4) |
| O2-C12 | 1.249 (6) | C10-C11-C12 | 120.6 (4) |
| N2-C9 | 1.346 (6) | O2-C12-C13 | 120.5 (6) |
| N3-C10 | 1.318 (7) | O1-C9-C8 | 123.8 (4) |
| C10-C11 | 1.426 (6) | C11-C10-C15 | 120.8 (5) |
| C11-C12 | 1.422 (8) | C10-N3-H3A | 118.9 |