Table 1.

Summary of the measured T₁ and T₂ of the various components observed in the 2D T₁–T₂ ILT map of water in the PAD sample. As described in the text, the correlation time (τ_c) is determined from the ratio of T₁ to T₂ and quantifies the tumbling of the D₂O molecule; the number following the ± symbol is not an error bar, but expresses the distribution of T₁ and T₂ values in the 2D ILT map which is propagated into the computation of τ_c. In cases where the T₁–T₂ ILT map was broadly distributed (at 40 and 50 °C, refer to Figure 8) the distribution value for T₁ and T₂ could not be accurately determined. The relative proportion was also determined based on the integrated signal intensity in the 2D T₁–T₂ ILT map at every temperature.

Temperature (°C)	T1 (s)	T2 (s)	τc × 10−9 (s)	Relative Proportion
20	0.247 ± 0.022	0.085 ± 0.005	6.78 ± 1.02	1
30	0.312 ± 0.016	0.129 ± 0.007	5.58 ± 0.68	1
40	0.413	0.245	3.45	0.976
	0.142 ± 0.014	0.048 ± 0.002	6.90 ± 0.96	0.024
50	0.546 ± 0.025	0.389 ± 0.042	2.50 ± 0.80	0.654
	0.259	0.096	6.29	0.346
60	0.658 ± 0.031	0.521 ± 0.029	1.95 ± 0.50	0.641
	0.572 ± 0.051	0.183 ± 0.009	7.29 ± 0.90	0.035
	0.285 ± 0.037	0.122 ± 0.020	5.36 ± 2.00	0.324
70	0.756 ± 0.036	0.658 ± 0.037	1.43 ± 0.57	0.643
	0.343 ± 0.033	0.163 ± 0.009	4.72 ± 0.92	0.357