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. 2018 Nov 29;23(12):3131. doi: 10.3390/molecules23123131

Table 2.

Pure-liquid properties of water as calculated from a 10 ns NpT simulation at 298.15 K and 1 atm (This work). Reference experimental data (Expt.) are listed for the density (ρ) [14,70], heat of vaporization (ΔHvap) [14,71], diffusion constant (corrected for box size, D) [72], static dielectric permittivity (ϵ0) [33], the static (μstatic) [65] and averaged molecular dipole moment (μ) [69], constant-pressure heat capacity (Cp) [73], thermal expansion coefficient (αp) [14,70], shear viscosity (η) [74], and isothermal compressibility (κT) [75]. Values for the diffusion constant under periodic boundary conditions (Dpbc) and the self-polarization energy (Uselfpol) are also listed. Values for SWM4-NDP and SWM6 water models were taken from Ref. [7] and values for SPC, COS/G2 and COS/D2 were taken from Ref. [8].

Expt. This Work SPC COS/G2 COS/D2 SWM4-NDP SWM6
ρ kg m−3 997 993 973 999 999 994 996
ΔHvap kJ mol−1 44.01 43.81 43.9 43.7 44.08 43.7 44.0
Dpbc 105 cm2 s−1 1.90 4.1 2.0 2.2 2.35 1.76
D 105 cm2 s−1 2.3 2.17 2.85 2.14
ϵ0 78.4 77.6 64.7 96.6 78.9 78.0 78.1
μstatic D 1.855 1.856 2.27 1.85 1.855 1.85 1.85
μ D 2.95 2.47 2.27 2.61 2.55 2.459 2.431
Uselfpol kJ mol−1 12.5 15.9 14.4
Cp J mol−1 K−1 75.3 91.9 93.0 107.7 88.9
αp 104 K−1 2.57 3.86 9.0 7.0 4.9
η cP 0.89 0.72 0.66 0.87
κT 106 atm−1 45.8 41.7 47.8 47.8 44.4