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lammps/examples/USER/fep/CH4hyd/mols/tip4pew.ff

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# TIP4P-Ew water (kJ/mol, A, deg)
ATOMS
# type m/uma q/e pot pars
Ow Ow 15.999 -1.04844 lj 3.16435 0.680946
Hw Hw 1.008 0.52422 lj 0.00000 0.000000
BONDS
# i j pot re/A ka/kJmol-1
Ow Hw cons 0.9572 4331.53
ANGLES
# i j k pot th/deg ka/kjmol-1
Hw Ow Hw cons 104.52 317.57