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. Author manuscript; available in PMC: 2016 Feb 25.
Published in final edited form as: J Am Chem Soc. 2016 Feb 4;138(6):1983–1993. doi: 10.1021/jacs.5b12582

Figure 3.

Figure 3

(a) Zero-field 57Fe Mössbauer spectrum of (tBuL)FeCl(•NC6H3-2,6-iPr2) (3) collected at 90 K: δ = 0.37 mm/s, |ΔEQ| = 2.17 mm/s. (b) Variable-temperature susceptibility data for of 3 collected at 1.0 T, with χMT = 2.76 cm3K/mol at 295 K; (inset) reduced magnetization collected at 7 fields (1–7 T) over the temperature range 1.8–10 K. Magnetization fit parameters obtained with PHI:62 g = 1.95, D = 2.91 cm−1, |E/D| = 0.21. (c) Mulliken spin density plot (α–β) calculated63 for 3, illustrating the antiferromagnetic coupling between the high-spin FeIII and the iminyl radical, J = −655 cm−1.