Hyperfine parameters derived from the Mössbauer spectroscopy acquired at room temperature and zero-field conditions.

x	Position of Fe3+	IS (mm s−1)	QS (mm s−1)	Hyperfine magnetic field (kG)	Area
0	Doublet	0.327	0.939	—	0.395
	Doublet	0.338	0.555	—	0.597
0.1	Doublet	0.337	0.531	—	0.670
	Doublet	0.338	0.903	—	0.431
0.2	Doublet	0.335	0.506	—	0.473
	Doublet	0.334	0.864	—	0.480
0.3	Doublet	0.323	0.532	—	0.348
	Doublet	0.320	0.871	—	0.596
0.4	Doublet	0.332	0.631	—	0.651
	Sextet	0.327	0.022	449	0.405
0.5	Doublet	0.325	0.663	—	0.862
	Sextet	0.250	0.169	457	0.202
0.6	Doublet	0.329	0.650	—	0.652
	Sextet	0.303	0.060	453	0.430
0.7	Doublet	0.326	0.656	—	0.453
	Sextet	0.300	0.014	456	0.688
0.8	Doublet	0.325	0.669	—	0.418
	Sextet	0.293	0.047	494	0.730
0.9	Doublet	0.276	0.674	—	0.207
	Sextet	0.295	0.270	512	0.895
1.0	Doublet	0.304	0.220	—	0.055
	Sextet	0.299	0.299	518	0.997