TIP4P/2005 model of water: Difference between revisions
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| <math>r_{\mathrm {OH}}</math> (Å)|| <math>\angle</math>HOH , deg|| <math>\sigma</math> (Å)|| <math>\epsilon/k</math> (K)|| q(O) (e) || q(H) (e) || q(M) (e) || <math>r_{\mathrm {OM}}</math> (Å) | | <math>r_{\mathrm {OH}}</math> (Å)|| <math>\angle</math>HOH , deg|| <math>\sigma</math> (Å)|| <math>\epsilon/k</math> (K)|| q(O) (e) || q(H) (e) || q(M) (e) || <math>r_{\mathrm {OM}}</math> (Å) | ||
Revision as of 17:30, 8 June 2009
The TIP4P/2005 model [1] is a re-parameterisation of the original TIP4P potential for simulations of water. TIP4P/2005 is a rigid planar model, having a similar geometry to the Bernal and Fowler model.
Parameters
| (Å) | HOH , deg | (Å) | (K) | q(O) (e) | q(H) (e) | q(M) (e) | (Å) |
| 0.9572 | 104.52 | 3.1589 | 93.2 | 0 | 0.5564 | -2q(H) | 0.1546 |
Phase diagram
The phase diagram of the TIP4P/2005 model is given in a publication by Abascal, Sanz and Vega.
Liquid-vapour equilibria
Plastic crystal phases
Recent simulations have suggested the possibility of a plastic crystal phase or phases for water.
Surface tension
The surface tension has been studied for the TIP4P/2005 model by Vega and Miguel.
Self-diffusion coefficient
The TIP4P/2005 potential has a self-diffusion coefficient, in bulk water at 298 K, of 0.21 Å2 ps−1 in a classical simulation of 216 water molecules (experimental value: 0.23 Å2 ps−1).
References
Related reading
External links and resources
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