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root/group/trunk/OOPSE-4/forceFields/MnM.frc
Revision: 3414
Committed: Mon Jun 16 19:53:53 2008 UTC (16 years, 1 month ago) by chuckv
File size: 15821 byte(s)
Log Message:
Added TraPPE torsions for thiols.

File Contents

# User Rev Content
1 chuckv 3156 // 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 3412
13 chuckv 3156 begin AtomTypes
14     //Name mass (amu)
15     CH4 16.05
16     CH3 15.04
17     CH2 14.03
18 chuckv 3405 CH 13.02
19 chuckv 3412 // CH3 (sp3) thiol/sulfide/disulfide
20     CH3S 15.04
21     // CH2 (sp3) thiol/sulfide/disulfide
22     CH2S 14.03
23     //CH (sp3) all other/thiol
24     CHS 13.02
25     //C (sp3) all other/thiol
26     CS 12.0107
27     // sulfone
28     SYZ 32.0655
29     // O in sulfone
30 chuckv 3414 //OY
31 chuckv 3412 // thiol S
32     SH 32.0655
33     //Thiol H
34     HS 1.0079
35 chuckv 3414 //Thiol S
36     S 32.0655
37 chuckv 3412 // Sulfoxide
38     SZ 32.0655
39     // Sulfur in disulfide
40     SS 32.0655
41     // Sulfur in aromatic (thiophene)
42     SP 32.0655
43     // sp2 carbon in thiophene
44     CS 12.0107
45     // Sulfur attached to gold
46     SAu 228.9807
47    
48     //Water
49 chuckv 3156 SSD 18.0153
50     SSD1 18.0153
51     SSD_E 18.0153
52     SSD_RF 18.0153
53     O_TIP3P 15.9994
54     O_TIP4P 15.9994
55     O_TIP4P-Ew 15.9994
56     O_TIP5P 15.9994
57     O_TIP5P-E 15.9994
58     O_SPCE 15.9994
59     O_SPC 15.9994
60     H_TIP3P 1.0079
61     H_TIP4P 1.0079
62     H_TIP4P-Ew 1.0079
63     H_TIP5P 1.0079
64     H_SPCE 1.0079
65     H_SPC 1.0079
66     EP_TIP4P 0.0
67     EP_TIP4P-Ew 0.0
68     EP_TIP5P 0.0
69 chuckv 3412
70     //Standard Atoms
71 chuckv 3156 C 12.0107
72     S 32.0655
73     Ni 58.710
74     Cu 63.550
75     Rh 102.90550
76     Pd 106.42
77     Ag 107.8682
78     Ir 192.217
79     Pt 195.09
80     Au 196.97
81     end AtomTypes
82    
83     begin DirectionalAtomTypes
84     //Name I_xx I_yy I_zz (All moments in (amu*Ang^2)
85     SSD 1.7696 0.6145 1.1550
86     SSD1 1.7696 0.6145 1.1550
87     SSD_E 1.7696 0.6145 1.1550
88     SSD_RF 1.7696 0.6145 1.1550
89     end DirectionalAtomTypes
90    
91    
92     begin LennardJonesAtomTypes
93     //Name epsilon sigma
94     SSD 0.152 3.051
95     SSD1 0.152 3.016
96     SSD_E 0.152 3.035
97     SSD_RF 0.152 3.019
98     O_TIP3P 0.1521 3.15061
99     O_TIP4P 0.1550 3.15365
100     O_TIP4P-Ew 0.16275 3.16435
101     O_TIP5P 0.16 3.12
102     O_TIP5P-E 0.178 3.097
103     O_SPCE 0.15532 3.16549
104     O_SPC 0.15532 3.16549
105 chuckv 3412 // From TraPPE-UA JPCB, 109, 24100 and JCPB 102,2569
106     CH4 0.2941 3.73
107     CH3 0.1947 3.75
108     CH2 0.09140 3.95
109     CH 0.0987 4.68
110     CS 0.0009935 6.40
111     CH3S 0.1947 3.75
112     CH2S 0.09140 3.95
113     CHS 0.0987 4.68
114     S 0.3954 3.58
115     SH 0.4610 3.62
116     SS 0.3279 3.72
117     SP 0.3576 3.60
118 chuckv 3414 // ---- End From TraPPE-UA
119 chuckv 3156 end LennardJonesAtomTypes
120    
121 chuckv 3161 begin SCAtomTypes
122     // Name epsilon(eV) c m n alpha(angstroms)
123     Ni 0.0073767 84.745 5.0 10.0 3.5157
124     Cu 0.0057921 84.843 5.0 10.0 3.6030
125     Rh 0.0024612 305.499 5.0 13.0 3.7984
126     Pd 0.0032864 148.205 6.0 12.0 3.8813
127     Ag 0.0039450 96.524 6.0 11.0 4.0691
128     Ir 0.0037674 224.815 6.0 13.0 3.8344
129     Pt 0.0097894 71.336 7.0 11.0 3.9163
130     Au 0.0078052 53.581 8.0 11.0 4.0651
131     end SCAtomTypes
132    
133    
134     // Metal non-metal interactions.
135     // Format: Metal Atom Type, Non-Metal Atom Type, Interaction Type, Interaction Parameters
136     // Where interaction type can be: MAW, LennardJones or ShiftedMorse or RepulsiveMorse
137     begin MetalNonMetalInteractions
138    
139     //MAW (Metal Angular Water section)
140 chuckv 3392 // r_e, D_e beta ca1 cb1
141     Cu SSD_E MAW 2.5525 1.9850 1.1680 1.1250 0.750000
142 chuckv 3356 //Au SSD_E MAW 2.8170 1.7850 1.2680 1.2500 0.2050 0.0
143 chuckv 3392 //Au SSD_E MAW 2.7510 2.95 1.101 0.750000 0.750000
144     //1. 1.5 2.6500001 -3.000162356E-2 1.30999744
145 chuckv 3397 //Au SSD_E MAW 2.7 1.06 1.264 0.16 0.8
146     Au SSD_E MAW 2.68 0.6 1.33 0.95 -0.25
147 chuckv 3161
148     //LennardJones
149     // sigma epsilon
150 chuckv 3409 Au CH3 LennardJones 3.54 0.2146
151     Au CH2 LennardJones 3.54 0.1749
152 chuckv 3407 Au S LennardJones 4.45 9.180
153 chuckv 3161
154     //Shifted Morse
155     // r0 D0 beta0
156 chuckv 3356 Au O_SPCE ShiftedMorse 3.70 0.0424 0.769
157 chuckv 3161
158     //Repulsive Morse
159     // r0 D0 beta0
160 chuckv 3356 Au H_SPCE RepulsiveMorse -1.00 0.00850 0.769
161 chuckv 3161
162    
163     end MetalNonMetalInteractions
164    
165    
166 chuckv 3156 begin ChargeAtomTypes
167     // Name charge
168     O_TIP3P -0.834
169     O_SPCE -0.8476
170     O_SPC -0.82
171     H_TIP3P 0.417
172     H_TIP4P 0.520
173     H_TIP4P-Ew 0.52422
174     H_TIP5P 0.241
175     H_SPCE 0.4238
176     H_SPC 0.42
177     EP_TIP4P -1.040
178     EP_TIP4P-Ew -1.04844
179     EP_TIP5P -0.241
180     end ChargeAtomTypes
181    
182     begin MultipoleAtomTypes
183     // OOPSE currently only supports charge-charge, charge-dipole,
184     // dipole-dipole, and charge-quadrupole interactions.
185     // Dipoles may be either traditional point-dipoles or split-dipoles.
186     // possible formats for a multipolar atom type are:
187     //
188     // Point-dipoles:
189     // name d phi theta psi dipole_moment
190     //
191     // Split-dipoles:
192     // name s phi theta psi dipole_moment splitdipole_distance
193     //
194     // Point-Quadrupoles:
195     // name q phi theta psi Qxx Qyy Qzz
196     //
197     // Atoms with both dipole and quadrupole moments:
198     // name dq phi theta psi dipole_moment Qxx Qyy Qzz
199     //
200     // Atoms with both split dipoles and quadrupole moments:
201     // name sq phi theta psi dipole_moment splitdipole_distance Qxx Qyy Qzz
202     //
203     // Euler angles are given in zxz convention in units of degrees.
204     //
205     // Charges are given in units of electrons.
206     //
207     // Dipoles are given in units of Debyes.
208     //
209     // Split dipole distances are given in units of Angstroms.
210     //
211     // Quadrupole moments are given in units of 10^-26 esu cm^2 (also known as an
212     // esu centi-barn)
213     //
214     SSD_E dq 0.0 0.0 0.0 2.42 -1.682 1.762 -0.08
215     SSD_RF dq 0.0 0.0 0.0 2.48 -1.682 1.762 -0.08
216     SSD dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
217     SSD1 dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
218     end MultipoleAtomTypes
219    
220     begin StickyAtomTypes
221     //name w0 v0 (kcal/mol) v0p rl (Ang) ru rlp rup
222     SSD_E 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
223     SSD_RF 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
224     SSD 0.07715 3.7284 3.7284 2.75 3.35 2.75 4.0
225     SSD1 0.07715 3.6613 3.6613 2.75 3.35 2.75 4.0
226     end StickyAtomTypes
227    
228    
229     begin BondTypes
230    
231     //Atom1 Atom2 Fixed
232     //V_Fixed = 0
233    
234     //Atom1 Atom2 Harmonic b0 Kb (kcal/mol)
235     //V_Harmonic = 0.5*Kb(b- bo)^2
236     //Harmonic Examples
237     CH3 CH3 Harmonic 1.526 260
238     CH3 CH2 Harmonic 1.526 260
239     CH3 CH Harmonic 1.526 260
240     CH2 CH2 Harmonic 1.526 260
241     CH2 CH Harmonic 1.526 260
242     CH CH Harmonic 1.526 260
243 kfletche 3411 // fix the Kb for the thiol below:
244 chuckv 3414 S CH2 Harmonic 1.82 281
245     SH CH2 Harmonic 1.82 281
246 chuckv 3156
247     //Atom1 Atom2 Cubic b0 K3 K2 K1 K0
248     //V_Cubic = K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
249    
250    
251     //Atom1 Atom2 Quartic b0 K4 K3 K2 K1 K0
252     //V_Quartic = K4(b - b0)^4 + K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
253    
254    
255     //Atom1 Atom2 Polynomial b0 i Ki [j Kj]
256     //V_Quartic = Ki(b - b0)^i + Kj(b - b0)^j + ...
257    
258    
259     end BondTypes
260    
261     begin BendTypes
262    
263     //Harmonic
264     //Atom1 Atom2 Atom3 Harmonic Theta0 Ktheta
265     //V_Harmonic = 0.5*Ktheta(Theta - Theta0)^2
266     //Ktheta: kcal/mole/rad**2
267     //Theta0: degrees
268     //Harmonic examples
269     //
270 chuckv 3414 //CH3 CH2 CH3 Harmonic 114.0 117.68
271     //CH3 CH2 CH2 Harmonic 114.0 117.68
272     //CH3 CH2 CH Harmonic 114.0 117.68
273     //CH3 CH CH3 Harmonic 112.0 117.68
274     //CH3 CH CH2 Harmonic 112.0 117.68
275     //CH3 CH CH Harmonic 112.0 117.68
276     //CH2 CH2 CH2 Harmonic 114.0 117.68
277     //CH2 CH2 CH Harmonic 114.0 117.68
278 chuckv 3156 CH2 CH CH2 Harmonic 112.0 117.68
279     CH2 CH CH Harmonic 112.0 117.68
280 chuckv 3414 //CH CH2 CH Harmonic 114.0 117.68
281 chuckv 3156 CH CH CH Harmonic 112.0 117.68
282    
283 chuckv 3414 //From Lubna et al.JPCB 109, 24100 (2005) TraPPE
284     CH3 CH2 SH Harmonic 96.0 67.220
285     CH2 CH2 SH Harmonic 96.0 67.220
286     CH2 CH2 S Harmonic 114.0 124.19
287     CH3 CH2 S Harmonic 114.0 124.19
288     CH3 CH2 CH3 Harmonic 114.0 124.19
289     CH3 CH2 CH2 Harmonic 114.0 124.19
290     CH2 CH2 CH2 Harmonic 114.0 124.19
291     CH3 CH2 CH Harmonic 114.0 124.19
292 chuckv 3156
293 chuckv 3414
294    
295 chuckv 3156 //UreyBradley
296     //Atom1 Atom2 Atom3 UreyBradley Theta0 Ktheta S0 Kub
297     //V_UreyBradleyBend = Ktheta(Theta - Theta0)^2 + Kub(S - S0)^2
298     //Ktheta: kcal/mole/rad**2
299     //Theta0: degrees
300     //Kub: kcal/mole/A**2
301     //S0: A
302    
303     //Cubic
304     //Atom1 Atom2 Atom3 Cubic Theta0 K3 K2 K1 K0
305     //V_Cubic = K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
306    
307     //Quartic
308     //Atom1 Atom2 Atom3 Quartic Theta0 K4 K3 K2 K1 K0
309     //V_Quartic = K4(Theta - Theta0)^4 + K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
310    
311     //Polynomial
312     //Atom1 Atom2 Atom3 Polynomial Theta0 i Ki [j Kj]
313     //V_Polynomial = Ki(Theta - Theta0)^i + Kj(Theta - Theta0)^j + ...
314    
315     end BendTypes
316    
317     begin TorsionTypes
318    
319 kfletche 3411 // All thiol torsions from Kautman and Klein (J. Phys. Chem. 1989, 91, 4994-5001)
320    
321 chuckv 3412 //S CH2 CH2 CH3 Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
322     //S CH2 CH2 CH2 Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
323     //S CH2 CH2 CH Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
324     //S CH2 CH2 C Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
325 kfletche 3411
326     // All type 1 possibilities from Dubbeldam et al. (J. Phys. Chem. B 2004, 108, 12301-12313)
327    
328 chuckv 3412 //CH3 CH2 CH2 CH3 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
329     //CH3 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
330     //CH3 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
331     //CH3 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
332     //CH2 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
333     //CH2 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
334     //CH2 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
335     //CH CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
336     //CH CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
337     //C CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
338 kfletche 3411
339     // All type 2 possibilities:
340    
341 chuckv 3412 //H CH CH2 CH3 Polynomial 0 2.7167 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
342     //H CH CH2 CH2 Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
343     //H CH CH2 CH Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
344     //H CH CH2 C Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
345 kfletche 3411
346     // All type 3 possibilities:
347    
348 chuckv 3412 //CH3 C CH2 CH3 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
349     //CH3 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
350     //CH3 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
351     //CH3 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
352     //CH2 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
353     //CH2 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
354     //CH2 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
355     //CH C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
356     //CH C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
357     //C C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
358 kfletche 3411
359     // All type 4 possibilities:
360    
361 chuckv 3412 //CH3 C C CH3 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
362     //CH3 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
363     //CH3 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
364     //CH3 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
365     //CH2 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
366     //CH2 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
367     //CH2 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
368     //CH C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
369     //CH C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
370     //C C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
371 kfletche 3411
372     //All type 5 possibilities:
373    
374 chuckv 3412 //CH3 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
375     //CH2 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
376     //CH C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
377     //C C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
378 kfletche 3411
379     //All type 6 possibilities:
380    
381 chuckv 3412 //H CH CH H Polynomial 0 2.1706 1 5.609 2 -1.804 3 -5.976 4 3.6089 5 -3.6089
382 kfletche 3411
383 chuckv 3156 //Cubic
384     //Atom1 Atom2 Atom3 Atom4 Cubic k3 k2 k1 k0 ( all are kcal/mol )
385     //V_Cubic = k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
386     //Cubic Examples
387 chuckv 3414 //CH3 CH2 CH2 CH3 Cubic 5.9602 -0.2568 -3.802 2.1586
388 chuckv 3412 CH3 CH2 CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
389     CH3 CH CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
390 chuckv 3414 //CH3 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
391 chuckv 3412 CH3 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
392     CH3 CH CH2 CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
393     CH3 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
394 chuckv 3414 //CH3 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
395 chuckv 3412 CH3 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
396     CH3 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
397     CH3 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
398 chuckv 3414 //CH2 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
399 chuckv 3412 CH2 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
400     CH2 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
401     CH2 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
402     CH2 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
403     CH2 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
404     CH2 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
405     CH CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
406     CH CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
407     CH CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
408 chuckv 3414 //S CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
409 chuckv 3156
410 chuckv 3412 //Opls
411 gezelter 3413 //Atom1 Atom2 Atom3 Atom4 Opls v1 v2 v3
412     //V_Opls = v1 / 2 * [1 + cos(phi)] + v2 / 2 * [1 - cos(2*phi)] + v3 / 2 * [1 + cos(3*phi)]
413 chuckv 3412 //units for v_n: kcal / mol
414    
415 chuckv 3414
416 gezelter 3413 //Trappe
417     //Atom1 Atom2 Atom3 Atom4 Trappe c0 c1 c2 c3
418     //V_Opls = c0 + c1 * [1 + cos(phi)] + c2 * [1 - cos(2*phi)] + c3 * [1 + cos(3*phi)]
419     //units for c_n: kcal / mol
420 chuckv 3412
421 chuckv 3414 //From Martin et al. JPCB 120, 2569 (1998)
422     CH3 CH2 CH2 CH3 Trappe 0.0 0.70544 -0.13549 1.5723
423     CH3 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
424     CH3 CH2 CH2 CH Trappe 0.0 0.70544 -0.13549 1.5723
425     CH2 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
426    
427    
428     //From Lubna et al.JPCB 109, 24100 (2005)
429     CH3 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
430     CH2 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
431     CH3 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
432     CH2 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
433     CH CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
434     CH2 S S CH2 Trappe 3.5049 0.79083 -4.3348 1.003932
435     CH3 S S CH3 Trappe 3.5049 0.79083 -4.3348 1.003932
436     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
437     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
438     CH2 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
439     CH CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
440     CH3 CH2 C S Trappe 0.0 0.0 0.0 0.91658
441     CH2 CH2 C S Trappe 0.0 0.0 0.0 0.91658
442     CH CH2 C S Trappe 0.0 0.0 0.0 0.91658
443     CH3 CG S H Trappe 0.0 0.0 0.0 0.79480
444    
445 chuckv 3156 //Charmm
446     //Atom1 Atom2 Atom3 Atom4 Charmm Kchi n delta [Kchi n delta]
447     //V_Charmm = Kchi(1 + cos(n(chi) - delta))
448     //Kchi: kcal/mole
449     //n: multiplicity
450     //delta: degrees
451     //in some cases, a Charmm may have two or three terms. If n is equal to 0, it falls back to harmonic form
452    
453     //Quartic
454     //Atom1 Atom2 Atom3 Atom4 Quartic k4 k3 k2 k1 k0 ( all are kcal/mol )
455     //V_Quartic = k4(cos phi)^4 + k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
456    
457     //Polynomial
458     //Atom1 Atom2 Atom3 Atom4 Polynomial i Ki [j Kj]
459     //VPolynomial = Ki (cos phi)^i + ... + Kj (cos phi)^j
460    
461 chuckv 3414
462 chuckv 3156 end TorsionTypes
463    
464