Table 2. Selected geometric parameters (Å, °) for 2 .
| C1—C2 | 1.5042 (13) | C4—O2 | 1.2287 (12) |
| C2—O1 | 1.2419 (12) | C4—C5 | 1.5135 (15) |
| C2—C3 | 1.4502 (14) | C7—C8 | 1.5197 (14) |
| C3—C6 | 1.4043 (12) | C7—C9 | 1.5235 (14) |
| C3—C4 | 1.4578 (13) | C7—C10 | 1.5237 (14) |
| C8—C7—N—C6 | −14.03 (14) | C10—C7—N—C6 | 107.27 (11) |
| C9—C7—N—C6 | −134.31 (11) |