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. Author manuscript; available in PMC: 2013 Jul 8.
Published in final edited form as: Acc Chem Res. 2007 May 31;40(7):501–509. doi: 10.1021/ar600059h

FIGURE 7.

FIGURE 7

Low-temperature IR spectrum of 16O-labeled (· · ·) and 18O-labeled (23%; —) [FeIII(SMe2N4(tren))(OOH)]+ (3) showing the peroxo νO–O Fermi doublet that shifts upon incorporation of 18O.