TABLE II.

Temperature dependence of the average relaxation time for hydration water fitted by Eq. (2) at q = 1.05 Å⁻¹, and extrapolated to 220 K.

Parameters	τ0 (ns)	K	T0 (K)	τ (ns) at 220 K
$\tau ={\tau }_0\text{exp}(\mathrm{K}{T}_0/(\mathrm{T}-T_0))$	5.2 × 10−6 ± 2.3 × 10−6	12.3 ± 0.5	124	39 ± 19
	1.2 × 10−5 ± 4.4 × 10−6	9.4 ± 0.3	136	52 ± 22
	2.0 × 10−4 ± 2.4 × 10−5	3.6 ± 0.1	176	370 ± 70