. Author manuscript; available in PMC: 2009 May 20.

Published in final edited form as: J Phys Chem B. 2005 Jul 7;109(26):12966–12975. doi: 10.1021/jp051137k

TABLE 1.

Experimental Values for Hydration Water Dynamics at Room Temperature for NAGMA and NALMA as a Function of Concentration

transport property	bulk water⁷⁷,⁷⁹	1.0 M NAGMA	3.0 M NAGMA	0.5 M NALMA	1.0 M NALMA	2.0 M NALMA
D_trans (10^-5 cm²/s) (JD^a)	2.3	1.65	1.10	1.65	1.26	0.75
D_trans (10^-5 cm²/s) (ISF^b)		1.61	1.10	1.25		0.67
τ_o (ps) (JD^a)	1.1	0.9	2.4	0.9	1.9	3.6
τ_rot (ps) (HR^c)	1.0	1.0	2.0	1.0	1.0	2.2
p value (EISF^d)		0.66	0.43	0.54	0.38	0.33
a value (Å) (EISF)		2.1	1.8	1.9	1.8	1.9

Translational diffusion coefficient, D_trans, and the residence time,τ₀, of water based on the jump diffusion model.

Translational diffusion coefficient, D_trans, based on the analysis from the experimental intermediate scattering function.

Rotational time scale for water, τ_rot, based on fit to Sears hindered rotation model.

Immobile protons.