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. 2013 Dec 30;111(2):623–628. doi: 10.1073/pnas.1314885111

Fig. 1.

Fig. 1.

Negative ion ES mass spectra of 10 μM (A) and 100 μM (B) FeCl2 aqueous microjets exposed to O2(g) or O3(g)/O2(g) for ∼10–50 μs. X and Y correspond to O=FeIV·Cl·FeIICl4− and O=FeIV·Cl·FeIIICl5−, respectively. See text for details.