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root/OpenMD/branches/development/forceFields/MnM.frc
Revision: 1544
Committed: Fri Mar 18 19:31:52 2011 UTC (14 years, 4 months ago) by gezelter
File size: 16155 byte(s)
Log Message:
More modifications for paralllel rewrite

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 1544 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 1544 end NonBondedInteractions
173 chuckv 1159
174    
175 chuckv 1154 begin ChargeAtomTypes
176     // Name charge
177     O_TIP3P -0.834
178     O_SPCE -0.8476
179     O_SPC -0.82
180     H_TIP3P 0.417
181     H_TIP4P 0.520
182     H_TIP4P-Ew 0.52422
183     H_TIP5P 0.241
184     H_SPCE 0.4238
185     H_SPC 0.42
186     EP_TIP4P -1.040
187     EP_TIP4P-Ew -1.04844
188     EP_TIP5P -0.241
189     end ChargeAtomTypes
190    
191     begin MultipoleAtomTypes
192 gezelter 1390 // OpenMD currently only supports charge-charge, charge-dipole,
193 chuckv 1154 // dipole-dipole, and charge-quadrupole interactions.
194     // Dipoles may be either traditional point-dipoles or split-dipoles.
195     // possible formats for a multipolar atom type are:
196     //
197     // Point-dipoles:
198     // name d phi theta psi dipole_moment
199     //
200     // Split-dipoles:
201     // name s phi theta psi dipole_moment splitdipole_distance
202     //
203     // Point-Quadrupoles:
204     // name q phi theta psi Qxx Qyy Qzz
205     //
206     // Atoms with both dipole and quadrupole moments:
207     // name dq phi theta psi dipole_moment Qxx Qyy Qzz
208     //
209     // Atoms with both split dipoles and quadrupole moments:
210     // name sq phi theta psi dipole_moment splitdipole_distance Qxx Qyy Qzz
211     //
212     // Euler angles are given in zxz convention in units of degrees.
213     //
214     // Charges are given in units of electrons.
215     //
216     // Dipoles are given in units of Debyes.
217     //
218     // Split dipole distances are given in units of Angstroms.
219     //
220     // Quadrupole moments are given in units of 10^-26 esu cm^2 (also known as an
221     // esu centi-barn)
222     //
223     SSD_E dq 0.0 0.0 0.0 2.42 -1.682 1.762 -0.08
224     SSD_RF dq 0.0 0.0 0.0 2.48 -1.682 1.762 -0.08
225     SSD dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
226     SSD1 dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
227     end MultipoleAtomTypes
228    
229     begin StickyAtomTypes
230     //name w0 v0 (kcal/mol) v0p rl (Ang) ru rlp rup
231     SSD_E 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
232     SSD_RF 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
233     SSD 0.07715 3.7284 3.7284 2.75 3.35 2.75 4.0
234     SSD1 0.07715 3.6613 3.6613 2.75 3.35 2.75 4.0
235     end StickyAtomTypes
236    
237    
238     begin BondTypes
239    
240     //Atom1 Atom2 Fixed
241     //V_Fixed = 0
242    
243     //Atom1 Atom2 Harmonic b0 Kb (kcal/mol)
244     //V_Harmonic = 0.5*Kb(b- bo)^2
245     //Harmonic Examples
246     CH3 CH3 Harmonic 1.526 260
247     CH3 CH2 Harmonic 1.526 260
248     CH3 CH Harmonic 1.526 260
249     CH2 CH2 Harmonic 1.526 260
250     CH2 CH Harmonic 1.526 260
251     CH CH Harmonic 1.526 260
252 kfletche 1256 // fix the Kb for the thiol below:
253 chuckv 1259 S CH2 Harmonic 1.82 281
254     SH CH2 Harmonic 1.82 281
255 chuckv 1154
256     //Atom1 Atom2 Cubic b0 K3 K2 K1 K0
257     //V_Cubic = K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
258    
259    
260     //Atom1 Atom2 Quartic b0 K4 K3 K2 K1 K0
261     //V_Quartic = K4(b - b0)^4 + K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
262    
263    
264     //Atom1 Atom2 Polynomial b0 i Ki [j Kj]
265     //V_Quartic = Ki(b - b0)^i + Kj(b - b0)^j + ...
266    
267    
268     end BondTypes
269    
270     begin BendTypes
271    
272     //Harmonic
273     //Atom1 Atom2 Atom3 Harmonic Theta0 Ktheta
274     //V_Harmonic = 0.5*Ktheta(Theta - Theta0)^2
275     //Ktheta: kcal/mole/rad**2
276     //Theta0: degrees
277     //Harmonic examples
278     //
279 chuckv 1259 //CH3 CH2 CH3 Harmonic 114.0 117.68
280     //CH3 CH2 CH2 Harmonic 114.0 117.68
281     //CH3 CH2 CH Harmonic 114.0 117.68
282     //CH3 CH CH3 Harmonic 112.0 117.68
283     //CH3 CH CH2 Harmonic 112.0 117.68
284     //CH3 CH CH Harmonic 112.0 117.68
285     //CH2 CH2 CH2 Harmonic 114.0 117.68
286     //CH2 CH2 CH Harmonic 114.0 117.68
287 chuckv 1154 CH2 CH CH2 Harmonic 112.0 117.68
288     CH2 CH CH Harmonic 112.0 117.68
289 chuckv 1259 //CH CH2 CH Harmonic 114.0 117.68
290 chuckv 1154 CH CH CH Harmonic 112.0 117.68
291    
292 chuckv 1259 //From Lubna et al.JPCB 109, 24100 (2005) TraPPE
293     CH3 CH2 SH Harmonic 96.0 67.220
294     CH2 CH2 SH Harmonic 96.0 67.220
295     CH2 CH2 S Harmonic 114.0 124.19
296     CH3 CH2 S Harmonic 114.0 124.19
297     CH3 CH2 CH3 Harmonic 114.0 124.19
298     CH3 CH2 CH2 Harmonic 114.0 124.19
299     CH2 CH2 CH2 Harmonic 114.0 124.19
300     CH3 CH2 CH Harmonic 114.0 124.19
301 chuckv 1154
302 chuckv 1259
303 chuckv 1154 //UreyBradley
304     //Atom1 Atom2 Atom3 UreyBradley Theta0 Ktheta S0 Kub
305     //V_UreyBradleyBend = Ktheta(Theta - Theta0)^2 + Kub(S - S0)^2
306     //Ktheta: kcal/mole/rad**2
307     //Theta0: degrees
308     //Kub: kcal/mole/A**2
309     //S0: A
310    
311     //Cubic
312     //Atom1 Atom2 Atom3 Cubic Theta0 K3 K2 K1 K0
313     //V_Cubic = K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
314    
315     //Quartic
316     //Atom1 Atom2 Atom3 Quartic Theta0 K4 K3 K2 K1 K0
317     //V_Quartic = K4(Theta - Theta0)^4 + K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
318    
319     //Polynomial
320     //Atom1 Atom2 Atom3 Polynomial Theta0 i Ki [j Kj]
321     //V_Polynomial = Ki(Theta - Theta0)^i + Kj(Theta - Theta0)^j + ...
322    
323     end BendTypes
324    
325     begin TorsionTypes
326    
327 kfletche 1256 // All thiol torsions from Kautman and Klein (J. Phys. Chem. 1989, 91, 4994-5001)
328    
329 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
330     //S CH2 CH2 CH2 Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
331     //S CH2 CH2 CH Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
332     //S CH2 CH2 C Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
333 kfletche 1256
334     // All type 1 possibilities from Dubbeldam et al. (J. Phys. Chem. B 2004, 108, 12301-12313)
335    
336 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
337     //CH3 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
338     //CH3 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
339     //CH3 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
340     //CH2 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
341     //CH2 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
342     //CH2 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
343     //CH CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
344     //CH CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
345     //C CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
346 kfletche 1256
347     // All type 2 possibilities:
348    
349 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
350     //H CH CH2 CH2 Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
351     //H CH CH2 CH Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
352     //H CH CH2 C Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
353 kfletche 1256
354     // All type 3 possibilities:
355    
356 chuckv 1257 //CH3 C CH2 CH3 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
357     //CH3 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
358     //CH3 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
359     //CH3 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
360     //CH2 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
361     //CH2 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
362     //CH2 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
363     //CH C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
364     //CH C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
365     //C C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
366 kfletche 1256
367     // All type 4 possibilities:
368    
369 chuckv 1257 //CH3 C C CH3 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
370     //CH3 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
371     //CH3 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
372     //CH3 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
373     //CH2 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
374     //CH2 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
375     //CH2 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
376     //CH C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
377     //CH C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
378     //C C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
379 kfletche 1256
380     //All type 5 possibilities:
381    
382 chuckv 1257 //CH3 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
383     //CH2 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
384     //CH C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
385     //C C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
386 kfletche 1256
387     //All type 6 possibilities:
388    
389 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
390 kfletche 1256
391 chuckv 1154 //Cubic
392     //Atom1 Atom2 Atom3 Atom4 Cubic k3 k2 k1 k0 ( all are kcal/mol )
393     //V_Cubic = k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
394     //Cubic Examples
395 chuckv 1259 //CH3 CH2 CH2 CH3 Cubic 5.9602 -0.2568 -3.802 2.1586
396 chuckv 1257 CH3 CH2 CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
397     CH3 CH CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
398 chuckv 1259 //CH3 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
399 chuckv 1257 CH3 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
400     CH3 CH CH2 CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
401     CH3 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
402 chuckv 1259 //CH3 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
403 chuckv 1257 CH3 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
404     CH3 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
405     CH3 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
406 chuckv 1259 //CH2 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
407 chuckv 1257 CH2 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
408     CH2 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
409     CH2 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
410     CH2 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
411     CH2 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
412     CH2 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
413     CH CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
414     CH CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
415     CH CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
416 chuckv 1259 //S CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
417 chuckv 1154
418 chuckv 1257 //Opls
419 gezelter 1258 //Atom1 Atom2 Atom3 Atom4 Opls v1 v2 v3
420     //V_Opls = v1 / 2 * [1 + cos(phi)] + v2 / 2 * [1 - cos(2*phi)] + v3 / 2 * [1 + cos(3*phi)]
421 chuckv 1257 //units for v_n: kcal / mol
422    
423 chuckv 1259
424 gezelter 1258 //Trappe
425     //Atom1 Atom2 Atom3 Atom4 Trappe c0 c1 c2 c3
426     //V_Opls = c0 + c1 * [1 + cos(phi)] + c2 * [1 - cos(2*phi)] + c3 * [1 + cos(3*phi)]
427     //units for c_n: kcal / mol
428 chuckv 1257
429 chuckv 1259 //From Martin et al. JPCB 120, 2569 (1998)
430     CH3 CH2 CH2 CH3 Trappe 0.0 0.70544 -0.13549 1.5723
431     CH3 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
432     CH3 CH2 CH2 CH Trappe 0.0 0.70544 -0.13549 1.5723
433     CH2 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
434    
435    
436     //From Lubna et al.JPCB 109, 24100 (2005)
437     CH3 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
438     CH2 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
439 chuckv 1273 // Thiol attached to a metal surface.
440     CH3 CH2 CH2 S Trappe 0.10507 -0.10342 0.036680 0.60874
441     CH2 CH2 CH2 S Trappe 0.10507 -0.10342 0.036680 0.60874
442 chuckv 1259 CH3 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
443     CH2 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
444     CH CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
445     CH2 S S CH2 Trappe 3.5049 0.79083 -4.3348 1.003932
446     CH3 S S CH3 Trappe 3.5049 0.79083 -4.3348 1.003932
447     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
448     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
449     CH2 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
450     CH CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
451     CH3 CH2 C S Trappe 0.0 0.0 0.0 0.91658
452     CH2 CH2 C S Trappe 0.0 0.0 0.0 0.91658
453     CH CH2 C S Trappe 0.0 0.0 0.0 0.91658
454     CH3 CG S H Trappe 0.0 0.0 0.0 0.79480
455 chuckv 1276 //From TraPPE-UA JPCB 104, 8008
456 chuckv 1259
457 chuckv 1154 //Charmm
458     //Atom1 Atom2 Atom3 Atom4 Charmm Kchi n delta [Kchi n delta]
459     //V_Charmm = Kchi(1 + cos(n(chi) - delta))
460     //Kchi: kcal/mole
461     //n: multiplicity
462     //delta: degrees
463     //in some cases, a Charmm may have two or three terms. If n is equal to 0, it falls back to harmonic form
464    
465     //Quartic
466     //Atom1 Atom2 Atom3 Atom4 Quartic k4 k3 k2 k1 k0 ( all are kcal/mol )
467     //V_Quartic = k4(cos phi)^4 + k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
468    
469     //Polynomial
470     //Atom1 Atom2 Atom3 Atom4 Polynomial i Ki [j Kj]
471     //VPolynomial = Ki (cos phi)^i + ... + Kj (cos phi)^j
472    
473 chuckv 1259
474 chuckv 1154 end TorsionTypes
475    
476