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root/OpenMD/trunk/forceFields/MnM.frc
Revision: 1623
Committed: Mon Sep 12 21:49:41 2011 UTC (13 years, 10 months ago) by gezelter
File size: 16487 byte(s)
Log Message:
Adding Repulsive Power potential

File Contents

# User Rev Content
1 chuckv 1154 // This is the forcefield file for the Metal-NonMetal(MnM) Interaction Forcefield
2     //
3     // The sections are divided into AtomTypes
4     //
5    
6    
7     begin Options
8     Name = "MnM"
9     MetallicEnergyUnitScaling 23.0605423
10     end Options
11    
12 chuckv 1257
13 gezelter 1279 begin BaseAtomTypes
14 chuckv 1154 //Name mass (amu)
15     CH4 16.05
16     CH3 15.04
17     CH2 14.03
18 chuckv 1250 CH 13.02
19 chuckv 1276 // Aromatic CH as in benzene
20     CHar 13.02
21     //
22     RCHar 12.0107
23 chuckv 1257 // CH3 (sp3) thiol/sulfide/disulfide
24     CH3S 15.04
25     // CH2 (sp3) thiol/sulfide/disulfide
26     CH2S 14.03
27     //CH (sp3) all other/thiol
28     CHS 13.02
29     //C (sp3) all other/thiol
30     CS 12.0107
31     // sulfone
32     SYZ 32.0655
33     // O in sulfone
34 chuckv 1259 //OY
35 chuckv 1257 // thiol S
36     SH 32.0655
37     //Thiol H
38     HS 1.0079
39 chuckv 1259 //Thiol S
40     S 32.0655
41 chuckv 1257 // Sulfoxide
42     SZ 32.0655
43     // Sulfur in disulfide
44     SS 32.0655
45     // Sulfur in aromatic (thiophene)
46     SP 32.0655
47     // sp2 carbon in thiophene
48     CS 12.0107
49     // Sulfur attached to gold
50     SAu 228.9807
51    
52 chuckv 1276
53 chuckv 1257 //Water
54 chuckv 1154 SSD 18.0153
55     SSD1 18.0153
56     SSD_E 18.0153
57     SSD_RF 18.0153
58     O_TIP3P 15.9994
59     O_TIP4P 15.9994
60     O_TIP4P-Ew 15.9994
61     O_TIP5P 15.9994
62     O_TIP5P-E 15.9994
63     O_SPCE 15.9994
64     O_SPC 15.9994
65     H_TIP3P 1.0079
66     H_TIP4P 1.0079
67     H_TIP4P-Ew 1.0079
68     H_TIP5P 1.0079
69     H_SPCE 1.0079
70     H_SPC 1.0079
71     EP_TIP4P 0.0
72     EP_TIP4P-Ew 0.0
73     EP_TIP5P 0.0
74 chuckv 1257
75     //Standard Atoms
76 chuckv 1154 C 12.0107
77     S 32.0655
78     Ni 58.710
79     Cu 63.550
80     Rh 102.90550
81     Pd 106.42
82     Ag 107.8682
83     Ir 192.217
84     Pt 195.09
85     Au 196.97
86 gezelter 1279 end BaseAtomTypes
87    
88     begin AtomTypes
89 chuckv 1154 end AtomTypes
90    
91     begin DirectionalAtomTypes
92     //Name I_xx I_yy I_zz (All moments in (amu*Ang^2)
93     SSD 1.7696 0.6145 1.1550
94     SSD1 1.7696 0.6145 1.1550
95     SSD_E 1.7696 0.6145 1.1550
96     SSD_RF 1.7696 0.6145 1.1550
97     end DirectionalAtomTypes
98    
99    
100     begin LennardJonesAtomTypes
101     //Name epsilon sigma
102     SSD 0.152 3.051
103     SSD1 0.152 3.016
104     SSD_E 0.152 3.035
105     SSD_RF 0.152 3.019
106     O_TIP3P 0.1521 3.15061
107     O_TIP4P 0.1550 3.15365
108     O_TIP4P-Ew 0.16275 3.16435
109     O_TIP5P 0.16 3.12
110     O_TIP5P-E 0.178 3.097
111     O_SPCE 0.15532 3.16549
112     O_SPC 0.15532 3.16549
113 chuckv 1257 // From TraPPE-UA JPCB, 109, 24100 and JCPB 102,2569
114     CH4 0.2941 3.73
115     CH3 0.1947 3.75
116     CH2 0.09140 3.95
117     CH 0.0987 4.68
118     CS 0.0009935 6.40
119     CH3S 0.1947 3.75
120     CH2S 0.09140 3.95
121     CHS 0.0987 4.68
122 chuckv 1276 // From CPC 177 2007 S-S distance on gold surfaces is 4.45
123     S 0.3954 4.45
124 chuckv 1257 SH 0.4610 3.62
125     SS 0.3279 3.72
126     SP 0.3576 3.60
127 chuckv 1276 //From TraPPE-UA JPCB 104, 8008
128     CHar 0.1003 3.695
129     RCHar 0.04173 3.88
130 chuckv 1259 // ---- End From TraPPE-UA
131 chuckv 1276
132 chuckv 1154 end LennardJonesAtomTypes
133    
134 chuckv 1159 begin SCAtomTypes
135     // Name epsilon(eV) c m n alpha(angstroms)
136     Ni 0.0073767 84.745 5.0 10.0 3.5157
137     Cu 0.0057921 84.843 5.0 10.0 3.6030
138     Rh 0.0024612 305.499 5.0 13.0 3.7984
139     Pd 0.0032864 148.205 6.0 12.0 3.8813
140     Ag 0.0039450 96.524 6.0 11.0 4.0691
141     Ir 0.0037674 224.815 6.0 13.0 3.8344
142     Pt 0.0097894 71.336 7.0 11.0 3.9163
143     Au 0.0078052 53.581 8.0 11.0 4.0651
144     end SCAtomTypes
145    
146    
147     // Metal non-metal interactions.
148     // Format: Metal Atom Type, Non-Metal Atom Type, Interaction Type, Interaction Parameters
149     // Where interaction type can be: MAW, LennardJones or ShiftedMorse or RepulsiveMorse
150     begin MetalNonMetalInteractions
151    
152     //MAW (Metal Angular Water section)
153 chuckv 1242 // r_e, D_e beta ca1 cb1
154     Cu SSD_E MAW 2.5525 1.9850 1.1680 1.1250 0.750000
155 chuckv 1229 //Au SSD_E MAW 2.8170 1.7850 1.2680 1.2500 0.2050 0.0
156 chuckv 1242 //Au SSD_E MAW 2.7510 2.95 1.101 0.750000 0.750000
157     //1. 1.5 2.6500001 -3.000162356E-2 1.30999744
158 chuckv 1245 //Au SSD_E MAW 2.7 1.06 1.264 0.16 0.8
159     Au SSD_E MAW 2.68 0.6 1.33 0.95 -0.25
160 chuckv 1159
161     //LennardJones
162     // sigma epsilon
163 chuckv 1254 Au CH3 LennardJones 3.54 0.2146
164     Au CH2 LennardJones 3.54 0.1749
165 chuckv 1276 //Au SH LennardJones 2.40 8.465
166     Au S LennardJones 2.40 8.465
167 chuckv 1159
168     //Shifted Morse
169     // r0 D0 beta0
170 chuckv 1229 Au O_SPCE ShiftedMorse 3.70 0.0424 0.769
171 chuckv 1159
172     //Repulsive Morse
173     // r0 D0 beta0
174 chuckv 1229 Au H_SPCE RepulsiveMorse -1.00 0.00850 0.769
175 chuckv 1159
176 gezelter 1623 //Repulsive Power
177     Au ON RepulsivePower 3.47005 0.186208 11
178     Au NO RepulsivePower 3.53955 0.168629 11
179 chuckv 1159 end MetalNonMetalInteractions
180    
181    
182 chuckv 1154 begin ChargeAtomTypes
183     // Name charge
184     O_TIP3P -0.834
185     O_SPCE -0.8476
186     O_SPC -0.82
187     H_TIP3P 0.417
188     H_TIP4P 0.520
189     H_TIP4P-Ew 0.52422
190     H_TIP5P 0.241
191     H_SPCE 0.4238
192     H_SPC 0.42
193     EP_TIP4P -1.040
194     EP_TIP4P-Ew -1.04844
195     EP_TIP5P -0.241
196     end ChargeAtomTypes
197    
198     begin MultipoleAtomTypes
199 gezelter 1390 // OpenMD currently only supports charge-charge, charge-dipole,
200 chuckv 1154 // dipole-dipole, and charge-quadrupole interactions.
201     // Dipoles may be either traditional point-dipoles or split-dipoles.
202     // possible formats for a multipolar atom type are:
203     //
204     // Point-dipoles:
205     // name d phi theta psi dipole_moment
206     //
207     // Split-dipoles:
208     // name s phi theta psi dipole_moment splitdipole_distance
209     //
210     // Point-Quadrupoles:
211     // name q phi theta psi Qxx Qyy Qzz
212     //
213     // Atoms with both dipole and quadrupole moments:
214     // name dq phi theta psi dipole_moment Qxx Qyy Qzz
215     //
216     // Atoms with both split dipoles and quadrupole moments:
217     // name sq phi theta psi dipole_moment splitdipole_distance Qxx Qyy Qzz
218     //
219     // Euler angles are given in zxz convention in units of degrees.
220     //
221     // Charges are given in units of electrons.
222     //
223     // Dipoles are given in units of Debyes.
224     //
225     // Split dipole distances are given in units of Angstroms.
226     //
227     // Quadrupole moments are given in units of 10^-26 esu cm^2 (also known as an
228     // esu centi-barn)
229     //
230     SSD_E dq 0.0 0.0 0.0 2.42 -1.682 1.762 -0.08
231     SSD_RF dq 0.0 0.0 0.0 2.48 -1.682 1.762 -0.08
232     SSD dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
233     SSD1 dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
234     end MultipoleAtomTypes
235    
236     begin StickyAtomTypes
237     //name w0 v0 (kcal/mol) v0p rl (Ang) ru rlp rup
238     SSD_E 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
239     SSD_RF 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
240     SSD 0.07715 3.7284 3.7284 2.75 3.35 2.75 4.0
241     SSD1 0.07715 3.6613 3.6613 2.75 3.35 2.75 4.0
242     end StickyAtomTypes
243    
244    
245     begin BondTypes
246    
247     //Atom1 Atom2 Fixed
248     //V_Fixed = 0
249    
250     //Atom1 Atom2 Harmonic b0 Kb (kcal/mol)
251     //V_Harmonic = 0.5*Kb(b- bo)^2
252     //Harmonic Examples
253     CH3 CH3 Harmonic 1.526 260
254     CH3 CH2 Harmonic 1.526 260
255     CH3 CH Harmonic 1.526 260
256     CH2 CH2 Harmonic 1.526 260
257     CH2 CH Harmonic 1.526 260
258     CH CH Harmonic 1.526 260
259 kfletche 1256 // fix the Kb for the thiol below:
260 chuckv 1259 S CH2 Harmonic 1.82 281
261     SH CH2 Harmonic 1.82 281
262 chuckv 1154
263     //Atom1 Atom2 Cubic b0 K3 K2 K1 K0
264     //V_Cubic = K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
265    
266    
267     //Atom1 Atom2 Quartic b0 K4 K3 K2 K1 K0
268     //V_Quartic = K4(b - b0)^4 + K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
269    
270    
271     //Atom1 Atom2 Polynomial b0 i Ki [j Kj]
272     //V_Quartic = Ki(b - b0)^i + Kj(b - b0)^j + ...
273    
274    
275     end BondTypes
276    
277     begin BendTypes
278    
279     //Harmonic
280     //Atom1 Atom2 Atom3 Harmonic Theta0 Ktheta
281     //V_Harmonic = 0.5*Ktheta(Theta - Theta0)^2
282     //Ktheta: kcal/mole/rad**2
283     //Theta0: degrees
284     //Harmonic examples
285     //
286 chuckv 1259 //CH3 CH2 CH3 Harmonic 114.0 117.68
287     //CH3 CH2 CH2 Harmonic 114.0 117.68
288     //CH3 CH2 CH Harmonic 114.0 117.68
289     //CH3 CH CH3 Harmonic 112.0 117.68
290     //CH3 CH CH2 Harmonic 112.0 117.68
291     //CH3 CH CH Harmonic 112.0 117.68
292     //CH2 CH2 CH2 Harmonic 114.0 117.68
293     //CH2 CH2 CH Harmonic 114.0 117.68
294 chuckv 1154 CH2 CH CH2 Harmonic 112.0 117.68
295     CH2 CH CH Harmonic 112.0 117.68
296 chuckv 1259 //CH CH2 CH Harmonic 114.0 117.68
297 chuckv 1154 CH CH CH Harmonic 112.0 117.68
298    
299 chuckv 1259 //From Lubna et al.JPCB 109, 24100 (2005) TraPPE
300     CH3 CH2 SH Harmonic 96.0 67.220
301     CH2 CH2 SH Harmonic 96.0 67.220
302     CH2 CH2 S Harmonic 114.0 124.19
303     CH3 CH2 S Harmonic 114.0 124.19
304     CH3 CH2 CH3 Harmonic 114.0 124.19
305     CH3 CH2 CH2 Harmonic 114.0 124.19
306     CH2 CH2 CH2 Harmonic 114.0 124.19
307     CH3 CH2 CH Harmonic 114.0 124.19
308 chuckv 1154
309 chuckv 1259
310 chuckv 1154 //UreyBradley
311     //Atom1 Atom2 Atom3 UreyBradley Theta0 Ktheta S0 Kub
312     //V_UreyBradleyBend = Ktheta(Theta - Theta0)^2 + Kub(S - S0)^2
313     //Ktheta: kcal/mole/rad**2
314     //Theta0: degrees
315     //Kub: kcal/mole/A**2
316     //S0: A
317    
318     //Cubic
319     //Atom1 Atom2 Atom3 Cubic Theta0 K3 K2 K1 K0
320     //V_Cubic = K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
321    
322     //Quartic
323     //Atom1 Atom2 Atom3 Quartic Theta0 K4 K3 K2 K1 K0
324     //V_Quartic = K4(Theta - Theta0)^4 + K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
325    
326     //Polynomial
327     //Atom1 Atom2 Atom3 Polynomial Theta0 i Ki [j Kj]
328     //V_Polynomial = Ki(Theta - Theta0)^i + Kj(Theta - Theta0)^j + ...
329    
330     end BendTypes
331    
332     begin TorsionTypes
333    
334 kfletche 1256 // All thiol torsions from Kautman and Klein (J. Phys. Chem. 1989, 91, 4994-5001)
335    
336 chuckv 1257 //S CH2 CH2 CH3 Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
337     //S CH2 CH2 CH2 Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
338     //S CH2 CH2 CH Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
339     //S CH2 CH2 C Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
340 kfletche 1256
341     // All type 1 possibilities from Dubbeldam et al. (J. Phys. Chem. B 2004, 108, 12301-12313)
342    
343 chuckv 1257 //CH3 CH2 CH2 CH3 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
344     //CH3 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
345     //CH3 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
346     //CH3 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
347     //CH2 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
348     //CH2 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
349     //CH2 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
350     //CH CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
351     //CH CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
352     //C CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
353 kfletche 1256
354     // All type 2 possibilities:
355    
356 chuckv 1257 //H CH CH2 CH3 Polynomial 0 2.7167 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
357     //H CH CH2 CH2 Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
358     //H CH CH2 CH Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
359     //H CH CH2 C Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
360 kfletche 1256
361     // All type 3 possibilities:
362    
363 chuckv 1257 //CH3 C CH2 CH3 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
364     //CH3 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
365     //CH3 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
366     //CH3 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
367     //CH2 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
368     //CH2 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
369     //CH2 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
370     //CH C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
371     //CH C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
372     //C C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
373 kfletche 1256
374     // All type 4 possibilities:
375    
376 chuckv 1257 //CH3 C C CH3 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
377     //CH3 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
378     //CH3 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
379     //CH3 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
380     //CH2 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
381     //CH2 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
382     //CH2 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
383     //CH C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
384     //CH C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
385     //C C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
386 kfletche 1256
387     //All type 5 possibilities:
388    
389 chuckv 1257 //CH3 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
390     //CH2 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
391     //CH C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
392     //C C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
393 kfletche 1256
394     //All type 6 possibilities:
395    
396 chuckv 1257 //H CH CH H Polynomial 0 2.1706 1 5.609 2 -1.804 3 -5.976 4 3.6089 5 -3.6089
397 kfletche 1256
398 chuckv 1154 //Cubic
399     //Atom1 Atom2 Atom3 Atom4 Cubic k3 k2 k1 k0 ( all are kcal/mol )
400     //V_Cubic = k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
401     //Cubic Examples
402 chuckv 1259 //CH3 CH2 CH2 CH3 Cubic 5.9602 -0.2568 -3.802 2.1586
403 chuckv 1257 CH3 CH2 CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
404     CH3 CH CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
405 chuckv 1259 //CH3 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
406 chuckv 1257 CH3 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
407     CH3 CH CH2 CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
408     CH3 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
409 chuckv 1259 //CH3 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
410 chuckv 1257 CH3 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
411     CH3 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
412     CH3 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
413 chuckv 1259 //CH2 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
414 chuckv 1257 CH2 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
415     CH2 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
416     CH2 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
417     CH2 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
418     CH2 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
419     CH2 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
420     CH CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
421     CH CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
422     CH CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
423 chuckv 1259 //S CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
424 chuckv 1154
425 chuckv 1257 //Opls
426 gezelter 1258 //Atom1 Atom2 Atom3 Atom4 Opls v1 v2 v3
427     //V_Opls = v1 / 2 * [1 + cos(phi)] + v2 / 2 * [1 - cos(2*phi)] + v3 / 2 * [1 + cos(3*phi)]
428 chuckv 1257 //units for v_n: kcal / mol
429    
430 chuckv 1259
431 gezelter 1258 //Trappe
432     //Atom1 Atom2 Atom3 Atom4 Trappe c0 c1 c2 c3
433     //V_Opls = c0 + c1 * [1 + cos(phi)] + c2 * [1 - cos(2*phi)] + c3 * [1 + cos(3*phi)]
434     //units for c_n: kcal / mol
435 chuckv 1257
436 chuckv 1259 //From Martin et al. JPCB 120, 2569 (1998)
437     CH3 CH2 CH2 CH3 Trappe 0.0 0.70544 -0.13549 1.5723
438     CH3 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
439     CH3 CH2 CH2 CH Trappe 0.0 0.70544 -0.13549 1.5723
440     CH2 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
441    
442    
443     //From Lubna et al.JPCB 109, 24100 (2005)
444     CH3 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
445     CH2 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
446 chuckv 1273 // Thiol attached to a metal surface.
447     CH3 CH2 CH2 S Trappe 0.10507 -0.10342 0.036680 0.60874
448     CH2 CH2 CH2 S Trappe 0.10507 -0.10342 0.036680 0.60874
449 chuckv 1259 CH3 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
450     CH2 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
451     CH CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
452     CH2 S S CH2 Trappe 3.5049 0.79083 -4.3348 1.003932
453     CH3 S S CH3 Trappe 3.5049 0.79083 -4.3348 1.003932
454     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
455     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
456     CH2 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
457     CH CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
458     CH3 CH2 C S Trappe 0.0 0.0 0.0 0.91658
459     CH2 CH2 C S Trappe 0.0 0.0 0.0 0.91658
460     CH CH2 C S Trappe 0.0 0.0 0.0 0.91658
461     CH3 CG S H Trappe 0.0 0.0 0.0 0.79480
462 chuckv 1276 //From TraPPE-UA JPCB 104, 8008
463 chuckv 1259
464 chuckv 1154 //Charmm
465     //Atom1 Atom2 Atom3 Atom4 Charmm Kchi n delta [Kchi n delta]
466     //V_Charmm = Kchi(1 + cos(n(chi) - delta))
467     //Kchi: kcal/mole
468     //n: multiplicity
469     //delta: degrees
470     //in some cases, a Charmm may have two or three terms. If n is equal to 0, it falls back to harmonic form
471    
472     //Quartic
473     //Atom1 Atom2 Atom3 Atom4 Quartic k4 k3 k2 k1 k0 ( all are kcal/mol )
474     //V_Quartic = k4(cos phi)^4 + k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
475    
476     //Polynomial
477     //Atom1 Atom2 Atom3 Atom4 Polynomial i Ki [j Kj]
478     //VPolynomial = Ki (cos phi)^i + ... + Kj (cos phi)^j
479    
480 chuckv 1259
481 chuckv 1154 end TorsionTypes
482    
483