1###################################################
2##                                               ##
3##  Keyfile for TIP4P Rigid 4-Site Water Models  ##
4##                                               ##
5###################################################
6
7parameters              NONE
8
9group-molecule
10
11vdwtype                 LENNARD-JONES
12radiusrule              GEOMETRIC
13radiustype              SIGMA
14radiussize              DIAMETER
15epsilonrule             GEOMETRIC
16dielectric              1.0000
17
18## Parameters for TIP4P
19
20atom             1    O    "TIP4P Water O"     8     15.995     3
21atom             2    H    "TIP4P Water H"     1      1.008     1
22atom             3    M    "TIP4P Water M"     0      0.000     1
23bond             1    2            1000.0      0.9572
24bond             1    3            1000.0      0.1500
25angle            2    1    2        100.0      104.52
26angle            2    1    3        100.0       52.26
27vdw              1            3.153577943      0.155041667
28vdw              2                  0.000      0.0000
29vdw              3                  0.000      0.0000
30charge           1                  0.000
31charge           2                  0.520
32charge           3                 -1.040
33
34## Parameters for TIP4P-Ew
35
36#atom            1    O       "TIP4P-Ew O"     8     15.995     3
37#atom            2    H       "TIP4P-Ew H"     1      1.008     1
38#atom            3    M       "TIP4P-Ew M"     0      0.000     1
39#bond            1    2            1000.0      0.9572
40#bond            1    3            1000.0      0.1250
41#angle           2    1    2        100.0      104.52
42#angle           2    1    3        100.0       52.26
43#vdw             1                3.16435      0.162750
44#vdw             2                  0.000      0.0000
45#vdw             3                  0.000      0.0000
46#charge          1                  0.000
47#charge          2                0.52422
48#charge          3               -1.04844
49