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J Chem Phys. 2009 Jun 14;130(22):221102. doi: 10.1063/1.3153871.

On the phase diagram of water with density functional theory potentials: The melting temperature of ice I(h) with the Perdew-Burke-Ernzerhof and Becke-Lee-Yang-Parr functionals.

Author information

1
Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, 902 Battelle Boulevard, MS K1-83, Richland, Washington 99352, USA.

Abstract

The melting temperature (T(m)) of ice I(h) was determined from constant enthalpy and pressure (NPH) Born-Oppenheimer molecular dynamics simulations to be 417+/-3 K for the Perdew-Burke-Ernzerhof and 411+/-4 K for the Becke-Lee-Yang-Parr density functionals using a coexisting ice (I(h))-liquid phase at constant pressures of P=2500 and 10,000 bar and a density rho=1 g/cm(3), respectively. This suggests that ambient condition simulations at rho=1 g/cm(3) will rather describe a supercooled state that is overstructured when compared to liquid water.

PMID:
19530755
DOI:
10.1063/1.3153871
[Indexed for MEDLINE]

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