. 2018 Mar 20;3(3):3330–3339. doi: 10.1021/acsomega.8b00031

Table 1. Chemical Shift Assignment of the Experimental NMR Spectra Together with the Obtained Characteristic Relaxation Times from the CP and ¹³C T₁ Experiments.

peaks	δ (¹³C) (ppm)	assignment	T_IS (ms)	T_1ρ (H) (ms)	T₁ (s)
e	27	methyl CH₃	1	20	1.7 and 0.2
d	33.2	CH	0.6	10	0.17
c	58.8	quaternary aliphatic C	1	30	6.8
	54.6 (from solution NMR)
b	131.6	aromatic CH	1	30	14.7
a	150	quaternary aromatic C	1	30	11

Table 1. Chemical Shift Assignment of the Experimental NMR Spectra Together with the Obtained Characteristic Relaxation Times from the CP and 13C T1 Experiments.