TIP4P model of water

The TIP4P model is a rigid planar four-site interaction potential for water, having a similar geometry to the original Bernal and Fowler model.

Parameters

$r_{\mathrm {OH} }$ (Å)	$\angle$HOH , deg	$\sigma$ (Å)	$\epsilon /k$ (K)	q(O) (e)	q(H) (e)	q(M) (e)	$r_{\mathrm {OM} }$ (Å)
0.9572	104.52	3.154	78.0	0	0.52	-2q(H)	0.15

Phase diagram

Plastic crystal phases

Recent simulations have demonstrated the existence of plastic crystal phases for the TIP4P model.

• J. L. Aragones and C. Vega "Plastic crystal phases of simple water models", Journal of Chemical Physics 130 244504 (2009)

See also

The following is a list of empirical models that build upon this TIP4P model:

• TIP4F
• TIP4P
• TIP4P/2005
• TIP4P-Ew
• TIP4P/FQ
• TIP4P-HB
• TIP4P/Ice
• TIP4P-pol
• TIP4PQ/2005
• TIP4P-QDP
• TIP4P-QDP-LJ