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lammps/examples/USER/fep/CC-CO/mols/CC-CO.ff

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# CC-CO.ff (kJ/mol, A, deg)
ATOMS
# type m/uma q/e pot pars
# ethane OPLS-AA
C-CO CT 12.011 -0.180 lj 3.50 0.27614
C-D CT 12.011 -0.180 lj 3.50 0.27614
CD- CT 12.011 0.000 lj 3.50 0.27614
H-D HC 1.008 0.060 lj 2.50 0.12552
HD- HC 1.008 0.000 lj 2.50 0.12552
H-H1 HC 1.008 0.060 lj 2.50 0.12552
# methanol OPLS-AA
CO-C CT 12.011 0.145 lj 3.50 0.27614
H1-H HC 1.008 0.040 lj 2.50 0.12552
OH-D OH 15.999 -0.683 lj 3.12 0.71128
OHD- OH 15.999 0.000 lj 3.12 0.71128
HO-D HO 1.008 0.418 lj 1.00 0.00000
HOD- HO 1.008 0.000 lj 1.00 0.00000
BONDS
# i j pot re/A ka/kJmol-1
# alkanes OPLS-AA JACS 118(1996)11225, JPC 100(1996)18010
HC CT cons 1.090 2845.12
CT CT harm 1.529 2242.62
# alcohols OPLS-AA JACS 118(1996)11225, JPC 100(1996)18010
CT OH harm 1.410 2677.76
HO OH cons 0.945 4627.50
ANGLES
# i j k pot th/deg ka/kjmol-1
# alkanes OPLS-AA JACS 118(1996)11225, JPC 100(1996)18010
HC CT HC harm 107.80 276.14
HC CT CT harm 110.70 313.80
CT CT CT harm 112.70 488.27
# alcohols OPLS-AA JACS 118(1996)11225, JPC 100(1996)18010
CT CT OH harm 0.0 418.40
HC CT OH harm 109.50 292.88
CT OH HO harm 108.50 460.24
DIHEDRALS
# i j k l pot v1 v2 v3 v4
# alkanes OPLS-AA JACS 118: 11225 (1996); J Phys Chem 100: 18010 (1996)
HC CT CT HC opls 0.0000 0.0000 1.3305 0.0000
HC CT CT CT opls 0.0000 0.0000 1.5313 0.0000
CT CT CT CT opls 7.2800 -0.6569 1.1673 0.0000
# alcohols OPLS-AA JACS 118(1996)11225, AMBER98 (OCCO) 117(1995)5179
HC CT OH HO opls 0.0000 0.0000 1.8828 0.0000
CT CT OH HO opls 0.0000 0.0000 0.0000 0.0000
HC CT CT OH opls 0.0000 0.0000 0.0000 0.0000