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. Author manuscript; available in PMC: 2010 Jun 10.
Published in final edited form as: J Am Chem Soc. 2009 Jun 10;131(22):7869–7878. doi: 10.1021/ja901868q

Table 4.

Optimized geometric parameters for compound 0 (S=1/2), I (S=1/2) and ferryl (S=1) species with different axial ligands

Axial Ligand Compound 0 Compound I Ferryl
(X) Fe-N Fe-X Fe-O O-O Fe-N Fe-X Fe-O Fe-N Fe-X Fe-O
Thiolate 2.03 2.35 1.84 1.45 2.02 2.68 1.61 2.03 2.48 1.65
Imidazole 2.02 2.13 1.78 1.44 2.02 2.13 1.63 2.02 2.20 1.62
F 2.03 1.80 1.83 1.46 2.02 1.82 1.65 2.03 1.83 1.65