# water atom_style full package omp 0 newton on on units metal dimension 3 boundary p p p read_data data.tip4p # Define interaction parameters pair_style lj/cut/coul/long/tip4p/omp 2 1 1 1 0.1250 12.000 bond_style harmonic angle_style harmonic pair_coeff * * 0.0 0.0 12.0 pair_coeff 2 2 0.00705684 3.16435 12.0 kspace_style pppm/tip4p 1.0e-4 kspace_modify order 4 bond_style harmonic angle_style harmonic bond_coeff 1 19.51 0.9572 angle_coeff 1 2.39 104.52 fix 1 all shake 0.0001 20 0 b 1 a 1 # initialize thermo 50 fix NPT all nvt temp 298.3 298.3 0.01 drag 0.5 run 1000