Table 2. Selected geometric parameters (Å, °) for 2 .
| Fe—O1 | 2.0876 (10) | Fe—O4 | 2.0520 (9) |
| Fe—O2 | 2.0497 (10) | Fe—N1 | 2.3021 (12) |
| Fe—O3 | 2.0970 (10) | Fe—N2 | 2.3184 (12) |
| O1—Fe—O2 | 85.58 (4) | O2—Fe—N2 | 84.18 (4) |
| O1—Fe—O3 | 93.98 (4) | O3—Fe—O4 | 86.00 (4) |
| O1—Fe—O4 | 99.11 (4) | O3—Fe—N1 | 170.93 (4) |
| O1—Fe—N1 | 92.44 (4) | O3—Fe—N2 | 95.43 (4) |
| O1—Fe—N2 | 166.73 (4) | O4—Fe—N1 | 86.66 (4) |
| O2—Fe—O3 | 95.84 (4) | O4—Fe—N2 | 90.87 (4) |
| O2—Fe—O4 | 174.85 (4) | N1—Fe—N2 | 79.35 (4) |
| O2—Fe—N1 | 91.04 (5) |