Table 1. Vibrational frequencies (cm^–1) reported for CaHydF.

CN–	CO	Sample	Ref.
2047, 2024	1979, 1940, 1892, 1882	[2Fe]adt-CaHydF (as prepared)	This work
2068, 2047, 2025	1969, 1940, 1904, 1885	[2Fe]adt-CaHydF (reduced) a	This work
2068, 2044	1968, 1941, 1905, 1885	[2Fe]adt-CaHydF (oxidized) b	This work
2069, 2044	1967, 1943, 1907, 1877	CaHydFEG c	Czech et al.25
2047, 2027	1940, 1881	CaHydFEG d	Shepard et al.26
2050, 2026	1958, 1943, 1940, 1897, 1879	CaHydFEG d	Scott et al.27
2072, 2042, 2024	1971, 1948, 1943, 1909, 1888	CaHydFEG e (reduced)	Scott et al.27

^a[2Fe]^adt-CaHydF, reduced by sodium-dithionite treatment.

^b[2Fe]^adt-CaHydF, oxidized by thionine acetate treatment.

^cCaHydF^EG homologously expressed.

^dCaHydF^EG heterologously expressed in E. coli.

^eCaHydF^EG heterologously expressed in E. coli, reduced by sodium-dithionite treatment.