1 ; original reference: [M. W. Mahoney and W. L. Jorgensen, J. Chem. Phys. 112 , 2000]
3 ; Note that there are various issues with tip5p and the different forcefields.
4 ; Discussion is here: http://redmine.gromacs.org/issues/1348
11 ; id at type res nr res name at name cg nr charge mass
12 1 OW_tip5p 1 SOL OW 1 0 16.00000
13 2 HW_tip5p 1 SOL HW1 1 0.241 1.00800
14 3 HW_tip5p 1 SOL HW2 1 0.241 1.00800
15 4 MW 1 SOL LP1 1 -0.241 0.00000
16 5 MW 1 SOL LP2 1 -0.241 0.00000
27 ; i j funct length force.c.
28 1 2 1 0.09572 502416.0 0.09572 502416.0
29 1 3 1 0.09572 502416.0 0.09572 502416.0
32 ; i j k funct angle force.c.
33 2 1 3 1 104.52 628.02 104.52 628.02
39 ; Vsite from funct a b c
40 4 1 2 3 4 -0.344908262 -0.34490826 -6.4437903493
41 5 1 2 3 4 -0.344908262 -0.34490826 6.4437903493
52 ; The positions of the vsites are computed as follows:
60 ; angle A (H1-O-H2) = 104.52
61 ; angle B (M1-O-M2) = 109.47
62 ; dist C (H-O) = 0.09572 nm
63 ; dist D (M-O) = 0.070 nm
67 ;H1 0.585882276 0.756950327 0.0
68 ;H2 0.585882276 -0.756950327 0.0
69 ;M1 -0.404151276 0.0 0.571543301
70 ;M2 -0.404151276 0.0 -0.571543301
71 ; Dummy pos x4 = x1 + a4*(x2-x1) + b4*(x3-x1) + c4*((x2-x1) x (x3-x1))
72 ; Dummy pos x5 = x1 + a5*(x2-x1) + b5*(x3-x1) + c5*((x2-x1) x (x3-x1))
73 ; a4 = b4 = a5 = b5 = (D*cos(B/2)) / (2*C*cos(A/2)) = -0.34490826
74 ; c5 = -c4 = (D * sin(B/2))/ (C^2 * sin(A)) = 6.4437903