Table 1. Crystallographic bond metrics for the Fe complexes with comparative examples a .
MR | 1H | 1NO2 | 2a | 2b | K[LiPrFeIIIOH] b | {K[LdmpFeNO]}7 c |
Fe–Namine (Å) | 2.235(2) | 2.231(1) | 2.251(2) | 2.245(2) | 2.194(3) | 2.198(2) |
Fe–Namidate ave (Å) | 2.015 | 2.158 | 2.114 | 2.027 | 2.022 | 2.026 |
Ccarbonyl–Nimidate | — | — | 1.304(4) | 1.295(4) | — | — |
Ccarbonyl–Namidate | 1.338(3) | 1.355(2) | 1.339(4) | 1.349(4) | 1.307(6) | 1.339(3) |
1.339(3) | 1.324(2) | 1.341(3) | 1.350(4) | 1.314(5) | 1.339(3) | |
1.331(2) | 1.335(2) | — | — | 1.321(4) | 1.341(3) | |
Fe–Oimidate | — | — | 2.071(2) | 1.977(2) | — | — |
Fe–X (Å) | 2.046(1) (X = OAc) | 2.111(1) (X = OAc) | 1.800 (X = O) | 1.782(1) (X = O) | 1.876(3) (X = OH) | 1.748(2) (X = NO) |
Fe–O–Fe (°) | — | — | 128.1 | 180 | — | — |