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. Author manuscript; available in PMC: 2020 Dec 16.
Published in final edited form as: Inorg Chem. 2019 Dec 2;58(24):16487–16499. doi: 10.1021/acs.inorgchem.9b02432

Figure 5.

Figure 5.

Resonance Raman spectra of 2ox-CN collected at 77 K using 647.1 nm laser excitation (30 mW at the sample). The samples were prepared at −78 °C by treating 2ox with (a) natural-abundance KCN (10 equiv) or (b) K13CN (10 equiv) in CH2Cl2. The KCN salts were solubilized using 18-crown-6 ether. The 13C isotope shifts relative to the NA spectrum are indicated in cm−1. Solvent-derived peaks are indicated with an asterisk (*).