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. Author manuscript; available in PMC: 2013 Sep 19.
Published in final edited form as: J Am Chem Soc. 2012 Sep 10;134(37):15269–15272. doi: 10.1021/ja307384e

Figure 1.

Figure 1

(a) UV-vis spectra of 1 (black) and 2 (red) in CH3CN at 0 °C. Inset; rRaman spectra of 2 prepared with 16O2 (red) and 18O2 (blue) and the difference spectrum (black). (b) ESI-MS of 2. Inset; isotope distribution patterns for 2-16O (red) and 2-18O (blue). The peak at m/z = 315.3 with asterisk was assigned to [CrII(12-TMC)(Cl)]+ (calculated m/z of 315.1).