Table 1.

Full extended X-ray absorption fine structure (EXAFS) least-squares fitting results for diferrous and diferric MauG

Coordination	R (Å)a	σ2 (Å2)b
Diferrous MauG
4.5 Fe–N/O	2.00	290
8 Fe–C	2.97	328
8 Fe–C/N	3.03	/328c
8 Fe–C/N	3.18	/328c
4 Fe–N	3.38	275
8 Fe–C/N	4.04	664
16 Fe–C/N–N/C	4.31	/664c
Diferric MauG
0.5 Fe–N/O	1.89	269
5 Fe–N/O	2.00	202
8 Fe–C	2.89	252
8 Fe–C	3.04	/252c
8 Fe–C	3.24	/252c
4 Fe–N	3.37	309
8 Fe–C/N	4.28	262
16 Fe–C/N–N/C	4.33	/262c

Error (F) is given by Σ[(χ_obsd − χ_calcd)²k⁶]/Σ[(χ_obsd)²k⁶] (diferrous MauG F = 0.39, E₀ = 3.23, diferric MauG: F = 0.39, E₀ = −1.86)

^aThe estimated standard deviations for the distances are on the order of ±0.02 Å

^bThe σ² values are multiplied by 10⁵

^cThe slash before a parameter indicates that it is linked to the same parameter as its parent single-scattering path