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root/group/trunk/OOPSE-4/forceFields/MnM.frc
Revision: 3428
Committed: Tue Jul 1 18:30:17 2008 UTC (16 years, 1 month ago) by chuckv
File size: 16046 byte(s)
Log Message:
Changes to thiol model.

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 3428 //Au SH LennardJones 4.45 9.180
153 chuckv 3407 Au S LennardJones 4.45 9.180
154 chuckv 3161
155     //Shifted Morse
156     // r0 D0 beta0
157 chuckv 3356 Au O_SPCE ShiftedMorse 3.70 0.0424 0.769
158 chuckv 3161
159     //Repulsive Morse
160     // r0 D0 beta0
161 chuckv 3356 Au H_SPCE RepulsiveMorse -1.00 0.00850 0.769
162 chuckv 3161
163    
164     end MetalNonMetalInteractions
165    
166    
167 chuckv 3156 begin ChargeAtomTypes
168     // Name charge
169     O_TIP3P -0.834
170     O_SPCE -0.8476
171     O_SPC -0.82
172     H_TIP3P 0.417
173     H_TIP4P 0.520
174     H_TIP4P-Ew 0.52422
175     H_TIP5P 0.241
176     H_SPCE 0.4238
177     H_SPC 0.42
178     EP_TIP4P -1.040
179     EP_TIP4P-Ew -1.04844
180     EP_TIP5P -0.241
181     end ChargeAtomTypes
182    
183     begin MultipoleAtomTypes
184     // OOPSE currently only supports charge-charge, charge-dipole,
185     // dipole-dipole, and charge-quadrupole interactions.
186     // Dipoles may be either traditional point-dipoles or split-dipoles.
187     // possible formats for a multipolar atom type are:
188     //
189     // Point-dipoles:
190     // name d phi theta psi dipole_moment
191     //
192     // Split-dipoles:
193     // name s phi theta psi dipole_moment splitdipole_distance
194     //
195     // Point-Quadrupoles:
196     // name q phi theta psi Qxx Qyy Qzz
197     //
198     // Atoms with both dipole and quadrupole moments:
199     // name dq phi theta psi dipole_moment Qxx Qyy Qzz
200     //
201     // Atoms with both split dipoles and quadrupole moments:
202     // name sq phi theta psi dipole_moment splitdipole_distance Qxx Qyy Qzz
203     //
204     // Euler angles are given in zxz convention in units of degrees.
205     //
206     // Charges are given in units of electrons.
207     //
208     // Dipoles are given in units of Debyes.
209     //
210     // Split dipole distances are given in units of Angstroms.
211     //
212     // Quadrupole moments are given in units of 10^-26 esu cm^2 (also known as an
213     // esu centi-barn)
214     //
215     SSD_E dq 0.0 0.0 0.0 2.42 -1.682 1.762 -0.08
216     SSD_RF dq 0.0 0.0 0.0 2.48 -1.682 1.762 -0.08
217     SSD dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
218     SSD1 dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
219     end MultipoleAtomTypes
220    
221     begin StickyAtomTypes
222     //name w0 v0 (kcal/mol) v0p rl (Ang) ru rlp rup
223     SSD_E 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
224     SSD_RF 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
225     SSD 0.07715 3.7284 3.7284 2.75 3.35 2.75 4.0
226     SSD1 0.07715 3.6613 3.6613 2.75 3.35 2.75 4.0
227     end StickyAtomTypes
228    
229    
230     begin BondTypes
231    
232     //Atom1 Atom2 Fixed
233     //V_Fixed = 0
234    
235     //Atom1 Atom2 Harmonic b0 Kb (kcal/mol)
236     //V_Harmonic = 0.5*Kb(b- bo)^2
237     //Harmonic Examples
238     CH3 CH3 Harmonic 1.526 260
239     CH3 CH2 Harmonic 1.526 260
240     CH3 CH Harmonic 1.526 260
241     CH2 CH2 Harmonic 1.526 260
242     CH2 CH Harmonic 1.526 260
243     CH CH Harmonic 1.526 260
244 kfletche 3411 // fix the Kb for the thiol below:
245 chuckv 3414 S CH2 Harmonic 1.82 281
246     SH CH2 Harmonic 1.82 281
247 chuckv 3156
248     //Atom1 Atom2 Cubic b0 K3 K2 K1 K0
249     //V_Cubic = K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
250    
251    
252     //Atom1 Atom2 Quartic b0 K4 K3 K2 K1 K0
253     //V_Quartic = K4(b - b0)^4 + K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
254    
255    
256     //Atom1 Atom2 Polynomial b0 i Ki [j Kj]
257     //V_Quartic = Ki(b - b0)^i + Kj(b - b0)^j + ...
258    
259    
260     end BondTypes
261    
262     begin BendTypes
263    
264     //Harmonic
265     //Atom1 Atom2 Atom3 Harmonic Theta0 Ktheta
266     //V_Harmonic = 0.5*Ktheta(Theta - Theta0)^2
267     //Ktheta: kcal/mole/rad**2
268     //Theta0: degrees
269     //Harmonic examples
270     //
271 chuckv 3414 //CH3 CH2 CH3 Harmonic 114.0 117.68
272     //CH3 CH2 CH2 Harmonic 114.0 117.68
273     //CH3 CH2 CH Harmonic 114.0 117.68
274     //CH3 CH CH3 Harmonic 112.0 117.68
275     //CH3 CH CH2 Harmonic 112.0 117.68
276     //CH3 CH CH Harmonic 112.0 117.68
277     //CH2 CH2 CH2 Harmonic 114.0 117.68
278     //CH2 CH2 CH Harmonic 114.0 117.68
279 chuckv 3156 CH2 CH CH2 Harmonic 112.0 117.68
280     CH2 CH CH Harmonic 112.0 117.68
281 chuckv 3414 //CH CH2 CH Harmonic 114.0 117.68
282 chuckv 3156 CH CH CH Harmonic 112.0 117.68
283    
284 chuckv 3414 //From Lubna et al.JPCB 109, 24100 (2005) TraPPE
285     CH3 CH2 SH Harmonic 96.0 67.220
286     CH2 CH2 SH Harmonic 96.0 67.220
287     CH2 CH2 S Harmonic 114.0 124.19
288     CH3 CH2 S Harmonic 114.0 124.19
289     CH3 CH2 CH3 Harmonic 114.0 124.19
290     CH3 CH2 CH2 Harmonic 114.0 124.19
291     CH2 CH2 CH2 Harmonic 114.0 124.19
292     CH3 CH2 CH Harmonic 114.0 124.19
293 chuckv 3156
294 chuckv 3414
295    
296 chuckv 3156 //UreyBradley
297     //Atom1 Atom2 Atom3 UreyBradley Theta0 Ktheta S0 Kub
298     //V_UreyBradleyBend = Ktheta(Theta - Theta0)^2 + Kub(S - S0)^2
299     //Ktheta: kcal/mole/rad**2
300     //Theta0: degrees
301     //Kub: kcal/mole/A**2
302     //S0: A
303    
304     //Cubic
305     //Atom1 Atom2 Atom3 Cubic Theta0 K3 K2 K1 K0
306     //V_Cubic = K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
307    
308     //Quartic
309     //Atom1 Atom2 Atom3 Quartic Theta0 K4 K3 K2 K1 K0
310     //V_Quartic = K4(Theta - Theta0)^4 + K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
311    
312     //Polynomial
313     //Atom1 Atom2 Atom3 Polynomial Theta0 i Ki [j Kj]
314     //V_Polynomial = Ki(Theta - Theta0)^i + Kj(Theta - Theta0)^j + ...
315    
316     end BendTypes
317    
318     begin TorsionTypes
319    
320 kfletche 3411 // All thiol torsions from Kautman and Klein (J. Phys. Chem. 1989, 91, 4994-5001)
321    
322 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
323     //S CH2 CH2 CH2 Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
324     //S CH2 CH2 CH Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
325     //S CH2 CH2 C Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
326 kfletche 3411
327     // All type 1 possibilities from Dubbeldam et al. (J. Phys. Chem. B 2004, 108, 12301-12313)
328    
329 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
330     //CH3 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
331     //CH3 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
332     //CH3 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
333     //CH2 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
334     //CH2 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
335     //CH2 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
336     //CH CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
337     //CH CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
338     //C CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
339 kfletche 3411
340     // All type 2 possibilities:
341    
342 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
343     //H CH CH2 CH2 Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
344     //H CH CH2 CH Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
345     //H CH CH2 C Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
346 kfletche 3411
347     // All type 3 possibilities:
348    
349 chuckv 3412 //CH3 C CH2 CH3 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
350     //CH3 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
351     //CH3 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
352     //CH3 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
353     //CH2 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
354     //CH2 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
355     //CH2 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
356     //CH C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
357     //CH C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
358     //C C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
359 kfletche 3411
360     // All type 4 possibilities:
361    
362 chuckv 3412 //CH3 C C CH3 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
363     //CH3 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
364     //CH3 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
365     //CH3 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
366     //CH2 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
367     //CH2 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
368     //CH2 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
369     //CH C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
370     //CH C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
371     //C C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
372 kfletche 3411
373     //All type 5 possibilities:
374    
375 chuckv 3412 //CH3 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
376     //CH2 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
377     //CH C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
378     //C C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
379 kfletche 3411
380     //All type 6 possibilities:
381    
382 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
383 kfletche 3411
384 chuckv 3156 //Cubic
385     //Atom1 Atom2 Atom3 Atom4 Cubic k3 k2 k1 k0 ( all are kcal/mol )
386     //V_Cubic = k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
387     //Cubic Examples
388 chuckv 3414 //CH3 CH2 CH2 CH3 Cubic 5.9602 -0.2568 -3.802 2.1586
389 chuckv 3412 CH3 CH2 CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
390     CH3 CH CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
391 chuckv 3414 //CH3 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
392 chuckv 3412 CH3 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
393     CH3 CH CH2 CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
394     CH3 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
395 chuckv 3414 //CH3 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
396 chuckv 3412 CH3 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
397     CH3 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
398     CH3 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
399 chuckv 3414 //CH2 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
400 chuckv 3412 CH2 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
401     CH2 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
402     CH2 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
403     CH2 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
404     CH2 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
405     CH2 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
406     CH CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
407     CH CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
408     CH CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
409 chuckv 3414 //S CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
410 chuckv 3156
411 chuckv 3412 //Opls
412 gezelter 3413 //Atom1 Atom2 Atom3 Atom4 Opls v1 v2 v3
413     //V_Opls = v1 / 2 * [1 + cos(phi)] + v2 / 2 * [1 - cos(2*phi)] + v3 / 2 * [1 + cos(3*phi)]
414 chuckv 3412 //units for v_n: kcal / mol
415    
416 chuckv 3414
417 gezelter 3413 //Trappe
418     //Atom1 Atom2 Atom3 Atom4 Trappe c0 c1 c2 c3
419     //V_Opls = c0 + c1 * [1 + cos(phi)] + c2 * [1 - cos(2*phi)] + c3 * [1 + cos(3*phi)]
420     //units for c_n: kcal / mol
421 chuckv 3412
422 chuckv 3414 //From Martin et al. JPCB 120, 2569 (1998)
423     CH3 CH2 CH2 CH3 Trappe 0.0 0.70544 -0.13549 1.5723
424     CH3 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
425     CH3 CH2 CH2 CH Trappe 0.0 0.70544 -0.13549 1.5723
426     CH2 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
427    
428    
429     //From Lubna et al.JPCB 109, 24100 (2005)
430     CH3 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
431     CH2 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
432 chuckv 3428 // Thiol attached to a metal surface.
433     CH3 CH2 CH2 S Trappe 0.10507 -0.10342 0.036680 0.60874
434     CH2 CH2 CH2 S Trappe 0.10507 -0.10342 0.036680 0.60874
435 chuckv 3414 CH3 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
436     CH2 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
437     CH CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
438     CH2 S S CH2 Trappe 3.5049 0.79083 -4.3348 1.003932
439     CH3 S S CH3 Trappe 3.5049 0.79083 -4.3348 1.003932
440     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
441     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
442     CH2 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
443     CH CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
444     CH3 CH2 C S Trappe 0.0 0.0 0.0 0.91658
445     CH2 CH2 C S Trappe 0.0 0.0 0.0 0.91658
446     CH CH2 C S Trappe 0.0 0.0 0.0 0.91658
447     CH3 CG S H Trappe 0.0 0.0 0.0 0.79480
448    
449 chuckv 3156 //Charmm
450     //Atom1 Atom2 Atom3 Atom4 Charmm Kchi n delta [Kchi n delta]
451     //V_Charmm = Kchi(1 + cos(n(chi) - delta))
452     //Kchi: kcal/mole
453     //n: multiplicity
454     //delta: degrees
455     //in some cases, a Charmm may have two or three terms. If n is equal to 0, it falls back to harmonic form
456    
457     //Quartic
458     //Atom1 Atom2 Atom3 Atom4 Quartic k4 k3 k2 k1 k0 ( all are kcal/mol )
459     //V_Quartic = k4(cos phi)^4 + k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
460    
461     //Polynomial
462     //Atom1 Atom2 Atom3 Atom4 Polynomial i Ki [j Kj]
463     //VPolynomial = Ki (cos phi)^i + ... + Kj (cos phi)^j
464    
465 chuckv 3414
466 chuckv 3156 end TorsionTypes
467    
468