Figure 1.

Zero-Field ⁵⁷Fe Mössbauer Spectra of [(fc^P,B)Zn(μ-OCH₂Ph)]₂ and [(fc^P,B)Zn(μ-OCH₂Ph)]₂[BAr^F]₂, Recorded as Solid Samples at 77 K

The solid lines are fits with Lorentzian doublets to the experimental spectra using the following isomer shifts δ and quadrupole splittings ΔE_Q: δ = 0.54(1) mm/s, ΔE_Q = 2.34 mm/s, Γ_FWHM = 0.29(1) mm/s (left) and δ = 0.54(1) mm/s, ΔE_Q = 2.26(1) mm/s, Γ_FWHM = 0.31(1) mm/s (right).