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. Author manuscript; available in PMC: 2008 Aug 17.
Published in final edited form as: J Am Chem Soc. 2007 Feb 28;129(11):3135–3147. doi: 10.1021/ja0654074

Table 6.

Heisenberg exchange coupling constants (J) and corrections to the BS energies induced by spin projection for the QM/MM model.

Species Sz(Sz+1) J (cm−1) ΔE (kcal/mol)
HRed 9 −25 −0.29
HRed-no-wat 9 23 0.26
HPeroxo A (μ-1,2) 11 −6 −0.08
Hperoxo (μ-η21) 11 −2 −0.04
Hperoxo (μ-η22) 11 −63 −0.90
HQ 9 −154 −1.76