Table 2. Ni K-Edge EXAFS Least-Squares Fitting Results^a.

	MCRred1−silent					MCRred1					MCRMe
path	no.	R (Å)b	σ2 (Å2)c	ΔE0 (eV)	Fd	no.	R (Å)b	σ2 (Å2)c	ΔE0 (eV)	Fd	no.	R (Å)b	σ2 (Å2)c	ΔE0 (eV)	Fd
Ni−N	4	2.09	298			4	2.05	624			5	2.08	591
Ni−O	1	2.26	382			1	2.25	949			1	2.32	951
Ni−S	1	2.41	644	13.08	0.37	0.36	2.41e	87	12.93	0.19	0.33	2.41e	81	13.58	0.27
Ni−C	6	3.01	720			6	3.02	604			6	3.03	641
Ni−C/N	12	3.20	288			12	3.21	415			12	3.23	291
Ni−C/N	12	4.43	924			12	4.41	801			12	4.38	588

^aThe S₀² value was fixed at 1 for all refinements. The positive ΔE₀ value is justified on the basis of the choice of threshold energy (54).

^bEstimated standard deviations in the distances are ±0.02 Å.

^cThe σ² values have been multiplied by 10⁵.

^dThe error is given by [(χ_obsd − χ_calcd)²k⁶]/[(χ_obsd²)k⁶].

^eThe distance for the Ni−S path was kept fixed in the case of MCR_red1 and MCR_Me.