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Figure 4
1H NMR spectra of MC_PP, MC and PP in toluene-d8. 1H NMR (MC_PP, 500 MHz, toluene-d8, 25°C, TMS): δ = 7.07 (t, 2 H; = CH-), 6.63 (ddd, 6 H; = CH-), 4.90 (s, 4 H; OH+NH), 2.31 (s, 8 H; CH2), 2.18 ppm (s, 6 H; CH3). 1H NMR (MC, 500 MHz, toluene-d8, 25°C, TMS): δ = 6.94 (dd, 1 H; = CH-), 6.56 (d, 1 H; = CH-), 6.35 (dd, 1 H; = CH-), 6.30 (s, 1 H; = CH-), 4.10 (s, 1 H; OH), 2.06 ppm (s, 3 H; CH3). 1H NMR (PP, 500 MHz, toluene-d8, 25°C, TMS): δ = 2.54 (m, 4 H; = CH2-), 0.91 (s, 1 H; NH).

IUCrJ
Volume 6| Part 6| November 2019| Pages 1064-1073
ISSN: 2052-2525
https://doi.org/10.1107/S2052252519012363