By using the direct coexistence method, we have calculated the melting points of ice Ih at normal pressure for three recently proposed water models, namely, TIP3P-FB, TIP4P-FB, and TIP4P-D. We obtained Tm = 216 K for TIP3P-FB, Tm = 242 K for TIP4P-FB, and Tm = 247 K for TIP4P-D. We revisited the melting point of TIP4P/2005 and TIP5P obtaining Tm = 250 and 274 K, respectively. We summarize the current situation of the melting point of ice Ih for a number of water models and conclude that no model is yet able to simultaneously reproduce the melting temperature of ice Ih and the temperature of the maximum in density at room pressure. This probably points toward our both still incomplete knowledge of the potential energy surface of water and the necessity of incorporating nuclear quantum effects to describe both properties simultaneously.
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7 June 2022
Brief Report|
June 07 2022
Melting points of water models: Current situation
Special Collection:
Fluids Meet Solids
S. Blazquez
;
S. Blazquez
Dpto. Química Física I, Fac. Ciencias Químicas, Universidad Complutense de Madrid
, 28040 Madrid, Spain
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C. Vega
C. Vega
a)
Dpto. Química Física I, Fac. Ciencias Químicas, Universidad Complutense de Madrid
, 28040 Madrid, Spain
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
a)Author to whom correspondence should be addressed: [email protected]
Note: This paper is part of the JCP Special Topic on Fluids Meets Solids.
J. Chem. Phys. 156, 216101 (2022)
Article history
Received:
March 30 2022
Accepted:
May 16 2022
Citation
S. Blazquez, C. Vega; Melting points of water models: Current situation. J. Chem. Phys. 7 June 2022; 156 (21): 216101. https://doi.org/10.1063/5.0093815
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