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root/OpenMD/branches/development/forceFields/MnM.frc
Revision: 1775
Committed: Wed Aug 8 18:45:52 2012 UTC (12 years, 9 months ago) by gezelter
File size: 16288 byte(s)
Log Message:
Tracking down a strange bug report.   Fixing some output. Fixing some samples.

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 gezelter 1775 //Au 0.24437807 0.24437807 0.00
94 chuckv 1154 SSD 1.7696 0.6145 1.1550
95     SSD1 1.7696 0.6145 1.1550
96     SSD_E 1.7696 0.6145 1.1550
97     SSD_RF 1.7696 0.6145 1.1550
98     end DirectionalAtomTypes
99    
100    
101     begin LennardJonesAtomTypes
102     //Name epsilon sigma
103     SSD 0.152 3.051
104     SSD1 0.152 3.016
105     SSD_E 0.152 3.035
106     SSD_RF 0.152 3.019
107     O_TIP3P 0.1521 3.15061
108     O_TIP4P 0.1550 3.15365
109     O_TIP4P-Ew 0.16275 3.16435
110     O_TIP5P 0.16 3.12
111     O_TIP5P-E 0.178 3.097
112     O_SPCE 0.15532 3.16549
113     O_SPC 0.15532 3.16549
114 chuckv 1257 // From TraPPE-UA JPCB, 109, 24100 and JCPB 102,2569
115     CH4 0.2941 3.73
116     CH3 0.1947 3.75
117     CH2 0.09140 3.95
118     CH 0.0987 4.68
119     CS 0.0009935 6.40
120     CH3S 0.1947 3.75
121     CH2S 0.09140 3.95
122     CHS 0.0987 4.68
123 chuckv 1276 // From CPC 177 2007 S-S distance on gold surfaces is 4.45
124     S 0.3954 4.45
125 chuckv 1257 SH 0.4610 3.62
126     SS 0.3279 3.72
127     SP 0.3576 3.60
128 chuckv 1276 //From TraPPE-UA JPCB 104, 8008
129     CHar 0.1003 3.695
130     RCHar 0.04173 3.88
131 chuckv 1259 // ---- End From TraPPE-UA
132 chuckv 1276
133 chuckv 1154 end LennardJonesAtomTypes
134    
135 chuckv 1159 begin SCAtomTypes
136     // Name epsilon(eV) c m n alpha(angstroms)
137     Ni 0.0073767 84.745 5.0 10.0 3.5157
138     Cu 0.0057921 84.843 5.0 10.0 3.6030
139     Rh 0.0024612 305.499 5.0 13.0 3.7984
140     Pd 0.0032864 148.205 6.0 12.0 3.8813
141     Ag 0.0039450 96.524 6.0 11.0 4.0691
142     Ir 0.0037674 224.815 6.0 13.0 3.8344
143     Pt 0.0097894 71.336 7.0 11.0 3.9163
144     Au 0.0078052 53.581 8.0 11.0 4.0651
145     end SCAtomTypes
146    
147    
148     // Metal non-metal interactions.
149 gezelter 1544 // Format: Metal Atom, Non-Metal Atom, Interaction Type, Interaction Parameters
150     // Interaction type can be: MAW, LennardJones or ShiftedMorse or RepulsiveMorse
151     begin NonBondedInteractions
152 chuckv 1159
153     //MAW (Metal Angular Water section)
154 chuckv 1242 // r_e, D_e beta ca1 cb1
155     Cu SSD_E MAW 2.5525 1.9850 1.1680 1.1250 0.750000
156 chuckv 1245 Au SSD_E MAW 2.68 0.6 1.33 0.95 -0.25
157 chuckv 1159
158     //LennardJones
159     // sigma epsilon
160 chuckv 1254 Au CH3 LennardJones 3.54 0.2146
161     Au CH2 LennardJones 3.54 0.1749
162 chuckv 1276 //Au SH LennardJones 2.40 8.465
163     Au S LennardJones 2.40 8.465
164 chuckv 1159
165     //Shifted Morse
166     // r0 D0 beta0
167 chuckv 1229 Au O_SPCE ShiftedMorse 3.70 0.0424 0.769
168 chuckv 1159
169     //Repulsive Morse
170     // r0 D0 beta0
171 chuckv 1229 Au H_SPCE RepulsiveMorse -1.00 0.00850 0.769
172 gezelter 1625
173     //Repulsive Power
174     Au ON RepulsivePower 3.47005 0.186208 11
175     Au NO RepulsivePower 3.53955 0.168629 11
176 gezelter 1544 end NonBondedInteractions
177 chuckv 1159
178    
179 chuckv 1154 begin ChargeAtomTypes
180     // Name charge
181     O_TIP3P -0.834
182     O_SPCE -0.8476
183     O_SPC -0.82
184     H_TIP3P 0.417
185     H_TIP4P 0.520
186     H_TIP4P-Ew 0.52422
187     H_TIP5P 0.241
188     H_SPCE 0.4238
189     H_SPC 0.42
190     EP_TIP4P -1.040
191     EP_TIP4P-Ew -1.04844
192     EP_TIP5P -0.241
193     end ChargeAtomTypes
194    
195     begin MultipoleAtomTypes
196 gezelter 1390 // OpenMD currently only supports charge-charge, charge-dipole,
197 chuckv 1154 // dipole-dipole, and charge-quadrupole interactions.
198     // Dipoles may be either traditional point-dipoles or split-dipoles.
199     // possible formats for a multipolar atom type are:
200     //
201     // Point-dipoles:
202     // name d phi theta psi dipole_moment
203     //
204     // Split-dipoles:
205     // name s phi theta psi dipole_moment splitdipole_distance
206     //
207     // Point-Quadrupoles:
208     // name q phi theta psi Qxx Qyy Qzz
209     //
210     // Atoms with both dipole and quadrupole moments:
211     // name dq phi theta psi dipole_moment Qxx Qyy Qzz
212     //
213     // Atoms with both split dipoles and quadrupole moments:
214     // name sq phi theta psi dipole_moment splitdipole_distance Qxx Qyy Qzz
215     //
216     // Euler angles are given in zxz convention in units of degrees.
217     //
218     // Charges are given in units of electrons.
219     //
220     // Dipoles are given in units of Debyes.
221     //
222     // Split dipole distances are given in units of Angstroms.
223     //
224     // Quadrupole moments are given in units of 10^-26 esu cm^2 (also known as an
225     // esu centi-barn)
226     //
227     SSD_E dq 0.0 0.0 0.0 2.42 -1.682 1.762 -0.08
228     SSD_RF dq 0.0 0.0 0.0 2.48 -1.682 1.762 -0.08
229     SSD dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
230     SSD1 dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
231     end MultipoleAtomTypes
232    
233     begin StickyAtomTypes
234     //name w0 v0 (kcal/mol) v0p rl (Ang) ru rlp rup
235     SSD_E 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
236     SSD_RF 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
237     SSD 0.07715 3.7284 3.7284 2.75 3.35 2.75 4.0
238     SSD1 0.07715 3.6613 3.6613 2.75 3.35 2.75 4.0
239     end StickyAtomTypes
240    
241    
242     begin BondTypes
243    
244     //Atom1 Atom2 Fixed
245     //V_Fixed = 0
246    
247     //Atom1 Atom2 Harmonic b0 Kb (kcal/mol)
248     //V_Harmonic = 0.5*Kb(b- bo)^2
249     //Harmonic Examples
250     CH3 CH3 Harmonic 1.526 260
251     CH3 CH2 Harmonic 1.526 260
252     CH3 CH Harmonic 1.526 260
253     CH2 CH2 Harmonic 1.526 260
254     CH2 CH Harmonic 1.526 260
255     CH CH Harmonic 1.526 260
256 kfletche 1256 // fix the Kb for the thiol below:
257 chuckv 1259 S CH2 Harmonic 1.82 281
258     SH CH2 Harmonic 1.82 281
259 chuckv 1154
260     //Atom1 Atom2 Cubic b0 K3 K2 K1 K0
261     //V_Cubic = K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
262    
263    
264     //Atom1 Atom2 Quartic b0 K4 K3 K2 K1 K0
265     //V_Quartic = K4(b - b0)^4 + K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
266    
267    
268     //Atom1 Atom2 Polynomial b0 i Ki [j Kj]
269     //V_Quartic = Ki(b - b0)^i + Kj(b - b0)^j + ...
270    
271    
272     end BondTypes
273    
274     begin BendTypes
275    
276     //Harmonic
277     //Atom1 Atom2 Atom3 Harmonic Theta0 Ktheta
278     //V_Harmonic = 0.5*Ktheta(Theta - Theta0)^2
279     //Ktheta: kcal/mole/rad**2
280     //Theta0: degrees
281     //Harmonic examples
282     //
283 chuckv 1259 //CH3 CH2 CH3 Harmonic 114.0 117.68
284     //CH3 CH2 CH2 Harmonic 114.0 117.68
285     //CH3 CH2 CH Harmonic 114.0 117.68
286     //CH3 CH CH3 Harmonic 112.0 117.68
287     //CH3 CH CH2 Harmonic 112.0 117.68
288     //CH3 CH CH Harmonic 112.0 117.68
289     //CH2 CH2 CH2 Harmonic 114.0 117.68
290     //CH2 CH2 CH Harmonic 114.0 117.68
291 chuckv 1154 CH2 CH CH2 Harmonic 112.0 117.68
292     CH2 CH CH Harmonic 112.0 117.68
293 chuckv 1259 //CH CH2 CH Harmonic 114.0 117.68
294 chuckv 1154 CH CH CH Harmonic 112.0 117.68
295    
296 chuckv 1259 //From Lubna et al.JPCB 109, 24100 (2005) TraPPE
297     CH3 CH2 SH Harmonic 96.0 67.220
298     CH2 CH2 SH Harmonic 96.0 67.220
299     CH2 CH2 S Harmonic 114.0 124.19
300     CH3 CH2 S Harmonic 114.0 124.19
301     CH3 CH2 CH3 Harmonic 114.0 124.19
302     CH3 CH2 CH2 Harmonic 114.0 124.19
303     CH2 CH2 CH2 Harmonic 114.0 124.19
304     CH3 CH2 CH Harmonic 114.0 124.19
305 chuckv 1154
306 chuckv 1259
307 chuckv 1154 //UreyBradley
308     //Atom1 Atom2 Atom3 UreyBradley Theta0 Ktheta S0 Kub
309     //V_UreyBradleyBend = Ktheta(Theta - Theta0)^2 + Kub(S - S0)^2
310     //Ktheta: kcal/mole/rad**2
311     //Theta0: degrees
312     //Kub: kcal/mole/A**2
313     //S0: A
314    
315     //Cubic
316     //Atom1 Atom2 Atom3 Cubic Theta0 K3 K2 K1 K0
317     //V_Cubic = K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
318    
319     //Quartic
320     //Atom1 Atom2 Atom3 Quartic Theta0 K4 K3 K2 K1 K0
321     //V_Quartic = K4(Theta - Theta0)^4 + K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
322    
323     //Polynomial
324     //Atom1 Atom2 Atom3 Polynomial Theta0 i Ki [j Kj]
325     //V_Polynomial = Ki(Theta - Theta0)^i + Kj(Theta - Theta0)^j + ...
326    
327     end BendTypes
328    
329     begin TorsionTypes
330    
331 kfletche 1256 // All thiol torsions from Kautman and Klein (J. Phys. Chem. 1989, 91, 4994-5001)
332    
333 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
334     //S CH2 CH2 CH2 Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
335     //S CH2 CH2 CH Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
336     //S CH2 CH2 C Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
337 kfletche 1256
338     // All type 1 possibilities from Dubbeldam et al. (J. Phys. Chem. B 2004, 108, 12301-12313)
339    
340 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
341     //CH3 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
342     //CH3 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
343     //CH3 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
344     //CH2 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
345     //CH2 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
346     //CH2 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
347     //CH CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
348     //CH CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
349     //C CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
350 kfletche 1256
351     // All type 2 possibilities:
352    
353 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
354     //H CH CH2 CH2 Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
355     //H CH CH2 CH Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
356     //H CH CH2 C Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
357 kfletche 1256
358     // All type 3 possibilities:
359    
360 chuckv 1257 //CH3 C CH2 CH3 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
361     //CH3 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
362     //CH3 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
363     //CH3 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
364     //CH2 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
365     //CH2 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
366     //CH2 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
367     //CH C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
368     //CH C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
369     //C C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
370 kfletche 1256
371     // All type 4 possibilities:
372    
373 chuckv 1257 //CH3 C C CH3 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
374     //CH3 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
375     //CH3 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
376     //CH3 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
377     //CH2 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
378     //CH2 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
379     //CH2 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
380     //CH C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
381     //CH C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
382     //C C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
383 kfletche 1256
384     //All type 5 possibilities:
385    
386 chuckv 1257 //CH3 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
387     //CH2 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
388     //CH C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
389     //C C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
390 kfletche 1256
391     //All type 6 possibilities:
392    
393 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
394 kfletche 1256
395 chuckv 1154 //Cubic
396     //Atom1 Atom2 Atom3 Atom4 Cubic k3 k2 k1 k0 ( all are kcal/mol )
397     //V_Cubic = k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
398     //Cubic Examples
399 chuckv 1259 //CH3 CH2 CH2 CH3 Cubic 5.9602 -0.2568 -3.802 2.1586
400 chuckv 1257 CH3 CH2 CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
401     CH3 CH CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
402 chuckv 1259 //CH3 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
403 chuckv 1257 CH3 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
404     CH3 CH CH2 CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
405     CH3 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
406 chuckv 1259 //CH3 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
407 chuckv 1257 CH3 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
408     CH3 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
409     CH3 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
410 chuckv 1259 //CH2 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
411 chuckv 1257 CH2 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
412     CH2 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
413     CH2 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
414     CH2 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
415     CH2 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
416     CH2 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
417     CH CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
418     CH CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
419     CH CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
420 chuckv 1259 //S CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
421 chuckv 1154
422 chuckv 1257 //Opls
423 gezelter 1258 //Atom1 Atom2 Atom3 Atom4 Opls v1 v2 v3
424     //V_Opls = v1 / 2 * [1 + cos(phi)] + v2 / 2 * [1 - cos(2*phi)] + v3 / 2 * [1 + cos(3*phi)]
425 chuckv 1257 //units for v_n: kcal / mol
426    
427 chuckv 1259
428 gezelter 1258 //Trappe
429     //Atom1 Atom2 Atom3 Atom4 Trappe c0 c1 c2 c3
430     //V_Opls = c0 + c1 * [1 + cos(phi)] + c2 * [1 - cos(2*phi)] + c3 * [1 + cos(3*phi)]
431     //units for c_n: kcal / mol
432 chuckv 1257
433 chuckv 1259 //From Martin et al. JPCB 120, 2569 (1998)
434     CH3 CH2 CH2 CH3 Trappe 0.0 0.70544 -0.13549 1.5723
435     CH3 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
436     CH3 CH2 CH2 CH Trappe 0.0 0.70544 -0.13549 1.5723
437     CH2 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
438    
439    
440     //From Lubna et al.JPCB 109, 24100 (2005)
441     CH3 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
442     CH2 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
443 chuckv 1273 // Thiol attached to a metal surface.
444     CH3 CH2 CH2 S Trappe 0.10507 -0.10342 0.036680 0.60874
445     CH2 CH2 CH2 S Trappe 0.10507 -0.10342 0.036680 0.60874
446 chuckv 1259 CH3 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
447     CH2 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
448     CH CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
449     CH2 S S CH2 Trappe 3.5049 0.79083 -4.3348 1.003932
450     CH3 S S CH3 Trappe 3.5049 0.79083 -4.3348 1.003932
451     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
452     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
453     CH2 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
454     CH CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
455     CH3 CH2 C S Trappe 0.0 0.0 0.0 0.91658
456     CH2 CH2 C S Trappe 0.0 0.0 0.0 0.91658
457     CH CH2 C S Trappe 0.0 0.0 0.0 0.91658
458     CH3 CG S H Trappe 0.0 0.0 0.0 0.79480
459 chuckv 1276 //From TraPPE-UA JPCB 104, 8008
460 chuckv 1259
461 chuckv 1154 //Charmm
462     //Atom1 Atom2 Atom3 Atom4 Charmm Kchi n delta [Kchi n delta]
463     //V_Charmm = Kchi(1 + cos(n(chi) - delta))
464     //Kchi: kcal/mole
465     //n: multiplicity
466     //delta: degrees
467     //in some cases, a Charmm may have two or three terms. If n is equal to 0, it falls back to harmonic form
468    
469     //Quartic
470     //Atom1 Atom2 Atom3 Atom4 Quartic k4 k3 k2 k1 k0 ( all are kcal/mol )
471     //V_Quartic = k4(cos phi)^4 + k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
472    
473     //Polynomial
474     //Atom1 Atom2 Atom3 Atom4 Polynomial i Ki [j Kj]
475     //VPolynomial = Ki (cos phi)^i + ... + Kj (cos phi)^j
476    
477 chuckv 1259
478 chuckv 1154 end TorsionTypes
479    
480