Table 3. Comparison of Selected Bond Lengths (Å) and Angles (deg) (Average Values) of 6 and [Fe2(CO)8] (M40)a.
| 6 | M | |
|---|---|---|
| Fe–Fe | 2.434(6) | 2.482 |
| Fe–Cbridged | 1.939 | 1.982 |
| Cbridged–N/O | 1.240 | 1.177 |
| Fe–Cterminal | 1.848 | 1.802 |
| Cterminal–N/O | 1.171 | 1.154 |
| Fe–Cterminal–N/O | 174.88 | 178.00 |
Optimized singlet geometry in Cs symmetry (BP86/TZVP).