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. 2018 Jan 5;4(1):eaao6250. doi: 10.1126/sciadv.aao6250

Fig. 4. Hyperpolarization of benzylamine (BnNH2) under SABRE.

Fig. 4

(A) 1H NMR spectrum of hyperpolarized BnNH2 achieved via 2-BnNH2 (top right) under SABRE in dichloromethane-d2 solution after transfer at 60 G (see fig. S32A for the corresponding thermally equilibrated NMR spectrum). The enhanced signals are color-coded; NH2 (blue), CH2 (light green), and Ph (orange) for the bound equatorial BnNH2 ligand of 2-BnNH2, NH2 and CH2 of the free material, and H2O. (B) Corresponding 15N NMR spectrum recorded using 15N-labeled BnNH2 after transfer in a μ-metal shield showing the free (left) and equatorial ligand (right) responses.