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root/group/trunk/OOPSE-4/forceFields/MnM.frc
Revision: 3431
Committed: Mon Jul 7 19:10:55 2008 UTC (16 years, 1 month ago) by chuckv
File size: 16318 byte(s)
Log Message:
Changed parameters for S-S interactions on gold surface.

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 3431 // Aromatic CH as in benzene
20     CHar 13.02
21     //
22     RCHar 12.0107
23 chuckv 3412 // 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 3414 //OY
35 chuckv 3412 // thiol S
36     SH 32.0655
37     //Thiol H
38     HS 1.0079
39 chuckv 3414 //Thiol S
40     S 32.0655
41 chuckv 3412 // 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 3431
53 chuckv 3412 //Water
54 chuckv 3156 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 3412
75     //Standard Atoms
76 chuckv 3156 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     end AtomTypes
87    
88     begin DirectionalAtomTypes
89     //Name I_xx I_yy I_zz (All moments in (amu*Ang^2)
90     SSD 1.7696 0.6145 1.1550
91     SSD1 1.7696 0.6145 1.1550
92     SSD_E 1.7696 0.6145 1.1550
93     SSD_RF 1.7696 0.6145 1.1550
94     end DirectionalAtomTypes
95    
96    
97     begin LennardJonesAtomTypes
98     //Name epsilon sigma
99     SSD 0.152 3.051
100     SSD1 0.152 3.016
101     SSD_E 0.152 3.035
102     SSD_RF 0.152 3.019
103     O_TIP3P 0.1521 3.15061
104     O_TIP4P 0.1550 3.15365
105     O_TIP4P-Ew 0.16275 3.16435
106     O_TIP5P 0.16 3.12
107     O_TIP5P-E 0.178 3.097
108     O_SPCE 0.15532 3.16549
109     O_SPC 0.15532 3.16549
110 chuckv 3412 // From TraPPE-UA JPCB, 109, 24100 and JCPB 102,2569
111     CH4 0.2941 3.73
112     CH3 0.1947 3.75
113     CH2 0.09140 3.95
114     CH 0.0987 4.68
115     CS 0.0009935 6.40
116     CH3S 0.1947 3.75
117     CH2S 0.09140 3.95
118     CHS 0.0987 4.68
119 chuckv 3431 // From CPC 177 2007 S-S distance on gold surfaces is 4.45
120     S 0.3954 4.45
121 chuckv 3412 SH 0.4610 3.62
122     SS 0.3279 3.72
123     SP 0.3576 3.60
124 chuckv 3431 //From TraPPE-UA JPCB 104, 8008
125     CHar 0.1003 3.695
126     RCHar 0.04173 3.88
127 chuckv 3414 // ---- End From TraPPE-UA
128 chuckv 3431
129 chuckv 3156 end LennardJonesAtomTypes
130    
131 chuckv 3161 begin SCAtomTypes
132     // Name epsilon(eV) c m n alpha(angstroms)
133     Ni 0.0073767 84.745 5.0 10.0 3.5157
134     Cu 0.0057921 84.843 5.0 10.0 3.6030
135     Rh 0.0024612 305.499 5.0 13.0 3.7984
136     Pd 0.0032864 148.205 6.0 12.0 3.8813
137     Ag 0.0039450 96.524 6.0 11.0 4.0691
138     Ir 0.0037674 224.815 6.0 13.0 3.8344
139     Pt 0.0097894 71.336 7.0 11.0 3.9163
140     Au 0.0078052 53.581 8.0 11.0 4.0651
141     end SCAtomTypes
142    
143    
144     // Metal non-metal interactions.
145     // Format: Metal Atom Type, Non-Metal Atom Type, Interaction Type, Interaction Parameters
146     // Where interaction type can be: MAW, LennardJones or ShiftedMorse or RepulsiveMorse
147     begin MetalNonMetalInteractions
148    
149     //MAW (Metal Angular Water section)
150 chuckv 3392 // r_e, D_e beta ca1 cb1
151     Cu SSD_E MAW 2.5525 1.9850 1.1680 1.1250 0.750000
152 chuckv 3356 //Au SSD_E MAW 2.8170 1.7850 1.2680 1.2500 0.2050 0.0
153 chuckv 3392 //Au SSD_E MAW 2.7510 2.95 1.101 0.750000 0.750000
154     //1. 1.5 2.6500001 -3.000162356E-2 1.30999744
155 chuckv 3397 //Au SSD_E MAW 2.7 1.06 1.264 0.16 0.8
156     Au SSD_E MAW 2.68 0.6 1.33 0.95 -0.25
157 chuckv 3161
158     //LennardJones
159     // sigma epsilon
160 chuckv 3409 Au CH3 LennardJones 3.54 0.2146
161     Au CH2 LennardJones 3.54 0.1749
162 chuckv 3431 //Au SH LennardJones 2.40 8.465
163     Au S LennardJones 2.40 8.465
164 chuckv 3161
165     //Shifted Morse
166     // r0 D0 beta0
167 chuckv 3356 Au O_SPCE ShiftedMorse 3.70 0.0424 0.769
168 chuckv 3161
169     //Repulsive Morse
170     // r0 D0 beta0
171 chuckv 3356 Au H_SPCE RepulsiveMorse -1.00 0.00850 0.769
172 chuckv 3161
173    
174     end MetalNonMetalInteractions
175    
176    
177 chuckv 3156 begin ChargeAtomTypes
178     // Name charge
179     O_TIP3P -0.834
180     O_SPCE -0.8476
181     O_SPC -0.82
182     H_TIP3P 0.417
183     H_TIP4P 0.520
184     H_TIP4P-Ew 0.52422
185     H_TIP5P 0.241
186     H_SPCE 0.4238
187     H_SPC 0.42
188     EP_TIP4P -1.040
189     EP_TIP4P-Ew -1.04844
190     EP_TIP5P -0.241
191     end ChargeAtomTypes
192    
193     begin MultipoleAtomTypes
194     // OOPSE currently only supports charge-charge, charge-dipole,
195     // dipole-dipole, and charge-quadrupole interactions.
196     // Dipoles may be either traditional point-dipoles or split-dipoles.
197     // possible formats for a multipolar atom type are:
198     //
199     // Point-dipoles:
200     // name d phi theta psi dipole_moment
201     //
202     // Split-dipoles:
203     // name s phi theta psi dipole_moment splitdipole_distance
204     //
205     // Point-Quadrupoles:
206     // name q phi theta psi Qxx Qyy Qzz
207     //
208     // Atoms with both dipole and quadrupole moments:
209     // name dq phi theta psi dipole_moment Qxx Qyy Qzz
210     //
211     // Atoms with both split dipoles and quadrupole moments:
212     // name sq phi theta psi dipole_moment splitdipole_distance Qxx Qyy Qzz
213     //
214     // Euler angles are given in zxz convention in units of degrees.
215     //
216     // Charges are given in units of electrons.
217     //
218     // Dipoles are given in units of Debyes.
219     //
220     // Split dipole distances are given in units of Angstroms.
221     //
222     // Quadrupole moments are given in units of 10^-26 esu cm^2 (also known as an
223     // esu centi-barn)
224     //
225     SSD_E dq 0.0 0.0 0.0 2.42 -1.682 1.762 -0.08
226     SSD_RF dq 0.0 0.0 0.0 2.48 -1.682 1.762 -0.08
227     SSD dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
228     SSD1 dq 0.0 0.0 0.0 2.35 -1.682 1.762 -0.08
229     end MultipoleAtomTypes
230    
231     begin StickyAtomTypes
232     //name w0 v0 (kcal/mol) v0p rl (Ang) ru rlp rup
233     SSD_E 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
234     SSD_RF 0.07715 3.90 3.90 2.40 3.80 2.75 3.35
235     SSD 0.07715 3.7284 3.7284 2.75 3.35 2.75 4.0
236     SSD1 0.07715 3.6613 3.6613 2.75 3.35 2.75 4.0
237     end StickyAtomTypes
238    
239    
240     begin BondTypes
241    
242     //Atom1 Atom2 Fixed
243     //V_Fixed = 0
244    
245     //Atom1 Atom2 Harmonic b0 Kb (kcal/mol)
246     //V_Harmonic = 0.5*Kb(b- bo)^2
247     //Harmonic Examples
248     CH3 CH3 Harmonic 1.526 260
249     CH3 CH2 Harmonic 1.526 260
250     CH3 CH Harmonic 1.526 260
251     CH2 CH2 Harmonic 1.526 260
252     CH2 CH Harmonic 1.526 260
253     CH CH Harmonic 1.526 260
254 kfletche 3411 // fix the Kb for the thiol below:
255 chuckv 3414 S CH2 Harmonic 1.82 281
256     SH CH2 Harmonic 1.82 281
257 chuckv 3156
258     //Atom1 Atom2 Cubic b0 K3 K2 K1 K0
259     //V_Cubic = K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
260    
261    
262     //Atom1 Atom2 Quartic b0 K4 K3 K2 K1 K0
263     //V_Quartic = K4(b - b0)^4 + K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
264    
265    
266     //Atom1 Atom2 Polynomial b0 i Ki [j Kj]
267     //V_Quartic = Ki(b - b0)^i + Kj(b - b0)^j + ...
268    
269    
270     end BondTypes
271    
272     begin BendTypes
273    
274     //Harmonic
275     //Atom1 Atom2 Atom3 Harmonic Theta0 Ktheta
276     //V_Harmonic = 0.5*Ktheta(Theta - Theta0)^2
277     //Ktheta: kcal/mole/rad**2
278     //Theta0: degrees
279     //Harmonic examples
280     //
281 chuckv 3414 //CH3 CH2 CH3 Harmonic 114.0 117.68
282     //CH3 CH2 CH2 Harmonic 114.0 117.68
283     //CH3 CH2 CH Harmonic 114.0 117.68
284     //CH3 CH CH3 Harmonic 112.0 117.68
285     //CH3 CH CH2 Harmonic 112.0 117.68
286     //CH3 CH CH Harmonic 112.0 117.68
287     //CH2 CH2 CH2 Harmonic 114.0 117.68
288     //CH2 CH2 CH Harmonic 114.0 117.68
289 chuckv 3156 CH2 CH CH2 Harmonic 112.0 117.68
290     CH2 CH CH Harmonic 112.0 117.68
291 chuckv 3414 //CH CH2 CH Harmonic 114.0 117.68
292 chuckv 3156 CH CH CH Harmonic 112.0 117.68
293    
294 chuckv 3414 //From Lubna et al.JPCB 109, 24100 (2005) TraPPE
295     CH3 CH2 SH Harmonic 96.0 67.220
296     CH2 CH2 SH Harmonic 96.0 67.220
297     CH2 CH2 S Harmonic 114.0 124.19
298     CH3 CH2 S Harmonic 114.0 124.19
299     CH3 CH2 CH3 Harmonic 114.0 124.19
300     CH3 CH2 CH2 Harmonic 114.0 124.19
301     CH2 CH2 CH2 Harmonic 114.0 124.19
302     CH3 CH2 CH Harmonic 114.0 124.19
303 chuckv 3156
304 chuckv 3414
305 chuckv 3156 //UreyBradley
306     //Atom1 Atom2 Atom3 UreyBradley Theta0 Ktheta S0 Kub
307     //V_UreyBradleyBend = Ktheta(Theta - Theta0)^2 + Kub(S - S0)^2
308     //Ktheta: kcal/mole/rad**2
309     //Theta0: degrees
310     //Kub: kcal/mole/A**2
311     //S0: A
312    
313     //Cubic
314     //Atom1 Atom2 Atom3 Cubic Theta0 K3 K2 K1 K0
315     //V_Cubic = K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
316    
317     //Quartic
318     //Atom1 Atom2 Atom3 Quartic Theta0 K4 K3 K2 K1 K0
319     //V_Quartic = K4(Theta - Theta0)^4 + K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
320    
321     //Polynomial
322     //Atom1 Atom2 Atom3 Polynomial Theta0 i Ki [j Kj]
323     //V_Polynomial = Ki(Theta - Theta0)^i + Kj(Theta - Theta0)^j + ...
324    
325     end BendTypes
326    
327     begin TorsionTypes
328    
329 kfletche 3411 // All thiol torsions from Kautman and Klein (J. Phys. Chem. 1989, 91, 4994-5001)
330    
331 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
332     //S CH2 CH2 CH2 Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
333     //S CH2 CH2 CH Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
334     //S CH2 CH2 C Polynomial 0 2.218 1 2.905 2 -3.136 3 -0.7313 4 6.272 5 -7.528
335 kfletche 3411
336     // All type 1 possibilities from Dubbeldam et al. (J. Phys. Chem. B 2004, 108, 12301-12313)
337    
338 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
339     //CH3 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
340     //CH3 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
341     //CH3 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
342     //CH2 CH2 CH2 CH2 Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
343     //CH2 CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
344     //CH2 CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
345     //CH CH2 CH2 CH Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
346     //CH CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
347     //C CH2 CH2 C Polynomial 0 2.3939 1 3.871 2 -0.7111 3 -3.864 4 1.4222 5 -3.111
348 kfletche 3411
349     // All type 2 possibilities:
350    
351 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
352     //H CH CH2 CH2 Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
353     //H CH CH2 CH Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
354     //H CH CH2 C Polynomial 0 2.7161 1 8.665 2 0.82669 3 -12.92 4 -1.653 5 3.2712
355 kfletche 3411
356     // All type 3 possibilities:
357    
358 chuckv 3412 //CH3 C CH2 CH3 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
359     //CH3 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
360     //CH3 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
361     //CH3 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
362     //CH2 C CH2 CH2 Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
363     //CH2 C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
364     //CH2 C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
365     //CH C CH2 CH Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
366     //CH C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
367     //C C CH2 C Polynomial 0 2.5701 1 7.710 2 0 3 -10.29 4 0 5 0
368 kfletche 3411
369     // All type 4 possibilities:
370    
371 chuckv 3412 //CH3 C C CH3 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
372     //CH3 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
373     //CH3 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
374     //CH3 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
375     //CH2 C C CH2 Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
376     //CH2 C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
377     //CH2 C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
378     //CH C C CH Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
379     //CH C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
380     //C C C C Polynomial 0 4.0652 1 12.20 2 0 3 -16.26 4 0 5 0
381 kfletche 3411
382     //All type 5 possibilities:
383    
384 chuckv 3412 //CH3 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
385     //CH2 C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
386     //CH C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
387     //C C CH H Polynomial 0 3.1301 1 9.390 2 0 3 -12.52 4 0 5 0
388 kfletche 3411
389     //All type 6 possibilities:
390    
391 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
392 kfletche 3411
393 chuckv 3156 //Cubic
394     //Atom1 Atom2 Atom3 Atom4 Cubic k3 k2 k1 k0 ( all are kcal/mol )
395     //V_Cubic = k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
396     //Cubic Examples
397 chuckv 3414 //CH3 CH2 CH2 CH3 Cubic 5.9602 -0.2568 -3.802 2.1586
398 chuckv 3412 CH3 CH2 CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
399     CH3 CH CH CH3 Cubic 3.3254 -0.4215 -1.686 1.1661
400 chuckv 3414 //CH3 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
401 chuckv 3412 CH3 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
402     CH3 CH CH2 CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
403     CH3 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
404 chuckv 3414 //CH3 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
405 chuckv 3412 CH3 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
406     CH3 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
407     CH3 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
408 chuckv 3414 //CH2 CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
409 chuckv 3412 CH2 CH2 CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
410     CH2 CH CH CH2 Cubic 3.3254 -0.4215 -1.686 1.1661
411     CH2 CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
412     CH2 CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
413     CH2 CH CH2 CH Cubic 3.3254 -0.4215 -1.686 1.1661
414     CH2 CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
415     CH CH2 CH2 CH Cubic 5.9602 -0.2568 -3.802 2.1586
416     CH CH2 CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
417     CH CH CH CH Cubic 3.3254 -0.4215 -1.686 1.1661
418 chuckv 3414 //S CH2 CH2 CH2 Cubic 5.9602 -0.2568 -3.802 2.1586
419 chuckv 3156
420 chuckv 3412 //Opls
421 gezelter 3413 //Atom1 Atom2 Atom3 Atom4 Opls v1 v2 v3
422     //V_Opls = v1 / 2 * [1 + cos(phi)] + v2 / 2 * [1 - cos(2*phi)] + v3 / 2 * [1 + cos(3*phi)]
423 chuckv 3412 //units for v_n: kcal / mol
424    
425 chuckv 3414
426 gezelter 3413 //Trappe
427     //Atom1 Atom2 Atom3 Atom4 Trappe c0 c1 c2 c3
428     //V_Opls = c0 + c1 * [1 + cos(phi)] + c2 * [1 - cos(2*phi)] + c3 * [1 + cos(3*phi)]
429     //units for c_n: kcal / mol
430 chuckv 3412
431 chuckv 3414 //From Martin et al. JPCB 120, 2569 (1998)
432     CH3 CH2 CH2 CH3 Trappe 0.0 0.70544 -0.13549 1.5723
433     CH3 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
434     CH3 CH2 CH2 CH Trappe 0.0 0.70544 -0.13549 1.5723
435     CH2 CH2 CH2 CH2 Trappe 0.0 0.70544 -0.13549 1.5723
436    
437    
438     //From Lubna et al.JPCB 109, 24100 (2005)
439     CH3 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
440     CH2 CH2 CH2 SH Trappe 0.10507 -0.10342 0.036680 0.60874
441 chuckv 3428 // Thiol attached to a metal surface.
442     CH3 CH2 CH2 S Trappe 0.10507 -0.10342 0.036680 0.60874
443     CH2 CH2 CH2 S Trappe 0.10507 -0.10342 0.036680 0.60874
444 chuckv 3414 CH3 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
445     CH2 CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
446     CH CH2 S CH2 Trappe 0.0 0.73041 -0.53685 1.1557
447     CH2 S S CH2 Trappe 3.5049 0.79083 -4.3348 1.003932
448     CH3 S S CH3 Trappe 3.5049 0.79083 -4.3348 1.003932
449     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
450     CH3 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
451     CH2 CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
452     CH CH2 CH S Trappe -0.49886 0.85189 -0.22225 0.87680
453     CH3 CH2 C S Trappe 0.0 0.0 0.0 0.91658
454     CH2 CH2 C S Trappe 0.0 0.0 0.0 0.91658
455     CH CH2 C S Trappe 0.0 0.0 0.0 0.91658
456     CH3 CG S H Trappe 0.0 0.0 0.0 0.79480
457 chuckv 3431 //From TraPPE-UA JPCB 104, 8008
458 chuckv 3414
459 chuckv 3156 //Charmm
460     //Atom1 Atom2 Atom3 Atom4 Charmm Kchi n delta [Kchi n delta]
461     //V_Charmm = Kchi(1 + cos(n(chi) - delta))
462     //Kchi: kcal/mole
463     //n: multiplicity
464     //delta: degrees
465     //in some cases, a Charmm may have two or three terms. If n is equal to 0, it falls back to harmonic form
466    
467     //Quartic
468     //Atom1 Atom2 Atom3 Atom4 Quartic k4 k3 k2 k1 k0 ( all are kcal/mol )
469     //V_Quartic = k4(cos phi)^4 + k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
470    
471     //Polynomial
472     //Atom1 Atom2 Atom3 Atom4 Polynomial i Ki [j Kj]
473     //VPolynomial = Ki (cos phi)^i + ... + Kj (cos phi)^j
474    
475 chuckv 3414
476 chuckv 3156 end TorsionTypes
477    
478