dataset for 1H nuclear magnetic resonance spectroscopy (1H NMR)
1H NMR (400 MHz, DMSO-d6 [2.50 ppm], ppm) δ = 8.61 (bs, 3H, HL(Pyr)), 7.69 (t, JHH = 7.4 Hz, 3H, HL(Pyr)), 7.41–7.28 (m, 36H, HL(Pyr), HL(Ph)). Impurities: 8% DCM at 5.73 ppm, 4% water at 3.31 ppm and 10% pentane in the range 0.70-1.35.