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. 2017 Apr 27;12(4):e0175225. doi: 10.1371/journal.pone.0175225

Fig 4. Exemplary NMR spectra of K2T23.

Fig 4

1H NMR spectra of K2T23 at room temperature in d2-Dichloromethane (upper panel) and d3-Acetonitrile (lower panel). In the insets the zoom of the region between 2 ppm and 5 ppm, where the peaks integrated to derive the fraction of compound in the diketo conformers, is presented.