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root/group/trunk/OOPSE-4/forceFields/newDUFF.frc
Revision: 1761
Committed: Fri Nov 19 20:37:11 2004 UTC (19 years, 7 months ago) by tim
File size: 8754 byte(s)
Log Message:
new DUFF forcefield

File Contents

# User Rev Content
1 tim 1761 // This is the forcefield file for the Dipolar Unified-atom Force Field (DUFF).
2    
3     //
4    
5     // The sections are divided into AtomTypes, BondTypes, BendTypes,
6    
7     // and TorsionTypes.
8    
9     //
10    
11     // Many parameters (but not all) are derived from the TRAPPE force field
12    
13     // of Siepmann's group.
14    
15    
16    
17     begin AtomTypes
18    
19     //AtomTypeName isDirectional isLJ isCharge mass (amu) epsilon (kcal/mol) sigma (Ang) q (e)
20     CH4 0 1 0 16.05 0.279 3.73
21     CH3 0 1 0 15.04 0.185 3.75
22    
23     CH2 0 1 0 14.03 0.0866 3.95
24    
25     CH 0 1 0 13.02 0.0189 4.68
26    
27     SSD 1 1 0 18.0153 0.152 3.035
28     HEAD 1 1 0 196 0.185 5.75
29     TB1 0 1 0 14.03 0.0866 4.0
30    
31     TE1 0 1 0 15.04 0.185 4.0
32    
33     TB2 0 1 0 21.05 0.25 6.0
34    
35     TE2 0 1 0 22.56 0.5 6.0
36    
37     TB3 0 1 0 28.06 0.5 8.0
38    
39     TE3 0 1 0 30.08 0.75 8.0
40    
41    
42    
43     end AtomTypes
44    
45    
46     begin DirectionalAtomType
47     //AtomTypeName isDipole isSticky I_xx (amu*Ang^2) I_yy I_zz dipole (Debye) w0 v0 (kcal/mol) v0p rl (Ang) ru rlp rup
48     SSD 1 1 1.7696 0.6145 1.1550 2.35 0.07715 3.7284 3.7284 2.75 3.35 2.75 4.0
49     HEAD 1 0 1125 1125 250 20.6
50     end DirectionalAtomType
51    
52     begin BondTypes
53    
54    
55    
56     //Atom1 Atom2 FixedBondType
57    
58     //V_FixedBondType = 0
59    
60    
61    
62     //Atom1 Atom2 HarmonicBondType b0 Kb (kcal/mol)
63    
64     //V_HarmonicBondType = Kb(b- bo)^2
65    
66     //HarmonicBondType Examples
67    
68     HEAD CH3 HarmonicBondType 2.75 260
69    
70     HEAD CH2 HarmonicBondType 2.75 260
71    
72     HEAD CH HarmonicBondType 2.75 260
73    
74     HEAD TB1 HarmonicBondType 2.76 260
75    
76     HEAD TB2 HarmonicBondType 3.20 260
77    
78     HEAD TB3 HarmonicBondType 3.63 260
79    
80     CH3 CH3 HarmonicBondType 1.526 260
81    
82     CH3 CH2 HarmonicBondType 1.526 260
83    
84     CH3 CH HarmonicBondType 1.526 260
85    
86     CH2 CH2 HarmonicBondType 1.526 260
87    
88     CH2 CH HarmonicBondType 1.526 260
89    
90     CH CH HarmonicBondType 1.526 260
91    
92     TB1 TB1 HarmonicBondType 1.526 260
93    
94     TB2 TB2 HarmonicBondType 2.34 260
95    
96     TB3 TB3 HarmonicBondType 3.12 260
97    
98     TB1 TE1 HarmonicBondType 1.526 260
99    
100     TB2 TE2 HarmonicBondType 2.34 260
101    
102     TB3 TE3 HarmonicBondType 3.12 260
103    
104    
105    
106     //Atom1 Atom2 CubicBondType b0 K3 K2 K1 K0
107    
108     //V_CubicBondType = K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
109    
110    
111    
112    
113    
114     //Atom1 Atom2 QuadraticBondType b0 K4 K3 K2 K1 K0
115    
116     //V_QuadraticBondType = K4(b - b0)^4 + K3(b - b0)^3 + K2(b - b0)^2 + K1(b - b0) + K0
117    
118    
119    
120    
121    
122     //Atom1 Atom2 PolynomialBondType b0 i Ki [j Kj]
123    
124     //V_QuadraticBondType = Ki(b - b0)^i + Kj(b - b0)^j + ...
125    
126    
127    
128    
129    
130     end BondTypes
131    
132    
133    
134     begin BendTypes
135    
136    
137    
138     //HarmonicBendType
139    
140     //Atom1 Atom2 Atom3 HarmonicBendType Ktheta Theta0
141    
142     //V_HarmonicBendType = Ktheta(Theta - Theta0)^2
143    
144     //Ktheta: kcal/mole/rad**2
145    
146     //Theta0: degrees
147    
148     //HarmonicBendType examples
149    
150     HEAD CH2 HEAD HarmonicBendType 58.84 114.0
151    
152     HEAD CH2 CH3 HarmonicBendType 58.84 114.0
153    
154     HEAD CH2 CH2 HarmonicBendType 58.84 114.0
155    
156     HEAD TB1 TB1 HarmonicBendType 58.84 114.0
157    
158     HEAD TB2 TB2 HarmonicBendType 58.84 114.0
159    
160     HEAD TB3 TB3 HarmonicBendType 58.84 114.0
161    
162     HEAD CH2 CH HarmonicBendType 58.84 114.0
163    
164     HEAD CH CH3 HarmonicBendType 58.84 112.0
165    
166     HEAD CH CH2 HarmonicBendType 58.84 112.0
167    
168     HEAD CH CH HarmonicBendType 58.84 112.0
169    
170     CH3 CH2 CH3 HarmonicBendType 58.84 114.0
171    
172     CH3 CH2 CH2 HarmonicBendType 58.84 114.0
173    
174     CH3 CH2 CH HarmonicBendType 58.84 114.0
175    
176     CH3 CH CH3 HarmonicBendType 58.84 112.0
177    
178     CH3 CH CH2 HarmonicBendType 58.84 112.0
179    
180     CH3 CH CH HarmonicBendType 58.84 112.0
181    
182     CH2 CH2 CH2 HarmonicBendType 58.84 114.0
183    
184     CH2 CH2 CH HarmonicBendType 58.84 114.0
185    
186     CH2 CH CH2 HarmonicBendType 58.84 112.0
187    
188     CH2 CH CH HarmonicBendType 58.84 112.0
189    
190     CH CH2 CH HarmonicBendType 58.84 114.0
191    
192     CH CH CH HarmonicBendType 58.84 112.0
193    
194     TB1 TB1 TB1 HarmonicBendType 58.84 114.0
195    
196     TB2 TB2 TB2 HarmonicBendType 58.84 114.0
197    
198     TB3 TB3 TB3 HarmonicBendType 58.84 114.0
199    
200     TE1 TB1 TB1 HarmonicBendType 58.84 114.0
201    
202     TE2 TB2 TB2 HarmonicBendType 58.84 114.0
203    
204     TE3 TB3 TB3 HarmonicBendType 58.84 114.0
205    
206    
207    
208     //GhostBend
209    
210     //Atom1 Atom2 GHOST GhostBendType Ktheta Theta0
211    
212     //Atom2 must be directional atom
213    
214     //GhostBendType examples
215    
216     CH2 HEAD GHOST GhostBendType 0.00176972 129.783
217    
218     CH2 HEAD GHOST GhostBendType 58.84 90.0
219    
220     TB1 HEAD GHOST GhostBendType 58.84 90.0
221    
222     TB2 HEAD GHOST GhostBendType 58.84 90.0
223    
224     TB3 HEAD GHOST GhostBendType 58.84 90.0
225    
226    
227    
228     //UreyBradleyBend
229    
230     //Atom1 Atom2 Atom3 UreyBradleyBend Ktheta Theta0 Kub S0
231    
232     //V_UreyBradleyBend = Ktheta(Theta - Theta0)^2 + Kub(S - S0)^2
233    
234     //Ktheta: kcal/mole/rad**2
235    
236     //Theta0: degrees
237    
238     //Kub: kcal/mole/A**2
239    
240     //S0: A
241    
242    
243    
244     //CubicBendType
245    
246     //Atom1 Atom2 Atom3 CubicBendType Theta0 K3 K2 K1 K0
247    
248     //V_CubicBendType = K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
249    
250    
251    
252     //QuadraticBendType
253    
254     //Atom1 Atom2 Atom3 QuadraticBendType Theta0 K4 K3 K2 K1 K0
255    
256     //V_QuadraticBendType = K4(Theta - Theta0)^4 + K3(Theta - Theta0)^3 + K2(Theta - Theta0)^2 + K1(Theta - Theta0) + K0
257    
258    
259    
260     //PolynomialBendType
261    
262     //Atom1 Atom2 Atom3 PolynomialBendType Theta0 i Ki [j Kj]
263    
264     //V_PolynomialBendType = Ki(Theta - Theta0)^i + Kj(Theta - Theta0)^j + ...
265    
266    
267    
268     end BendTypes
269    
270    
271    
272     begin TorsionTypes
273    
274    
275    
276     //CubicTorsionType
277    
278     //Atom1 Atom2 Atom3 Atom4 CubicTorsionType k3 k2 k1 k0 ( all are kcal/mol )
279    
280     //V_CubicTorsionType = k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
281    
282     //CubicTorsionType Examples
283    
284     HEAD CH2 CH2 HEAD CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
285    
286     HEAD CH2 CH HEAD CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
287    
288     HEAD CH CH HEAD CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
289    
290     HEAD CH2 CH2 CH3 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
291    
292     HEAD CH2 CH CH3 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
293    
294     HEAD CH CH2 CH3 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
295    
296     HEAD CH CH CH3 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
297    
298     HEAD CH2 CH2 CH2 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
299    
300     HEAD CH2 CH CH2 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
301    
302     HEAD CH CH2 CH2 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
303    
304     HEAD CH CH CH2 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
305    
306     HEAD CH2 CH2 CH CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
307    
308     HEAD CH2 CH CH CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
309    
310     HEAD CH CH2 CH CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
311    
312     HEAD CH CH CH CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
313    
314     HEAD TB1 TB1 TB1 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
315    
316     HEAD TB2 TB2 TB2 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
317    
318     HEAD TB3 TB3 TB3 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
319    
320     CH3 CH2 CH2 CH3 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
321    
322     CH3 CH2 CH CH3 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
323    
324     CH3 CH CH CH3 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
325    
326     CH3 CH2 CH2 CH2 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
327    
328     CH3 CH2 CH CH2 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
329    
330     CH3 CH CH2 CH2 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
331    
332     CH3 CH CH CH2 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
333    
334     CH3 CH2 CH2 CH CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
335    
336     CH3 CH2 CH CH CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
337    
338     CH3 CH CH2 CH CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
339    
340     CH3 CH CH CH CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
341    
342     CH2 CH2 CH2 CH2 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
343    
344     CH2 CH2 CH CH2 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
345    
346     CH2 CH CH CH2 CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
347    
348     CH2 CH2 CH2 CH CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
349    
350     CH2 CH2 CH CH CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
351    
352     CH2 CH CH2 CH CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
353    
354     CH2 CH CH CH CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
355    
356     CH CH2 CH2 CH CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
357    
358     CH CH2 CH CH CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
359    
360     CH CH CH CH CubicTorsionType 3.3254 -0.4215 -1.686 1.1661
361    
362     TB1 TB1 TB1 TB1 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
363    
364     TB2 TB2 TB2 TB2 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
365    
366     TB3 TB3 TB3 TB3 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
367    
368     TE1 TB1 TB1 TB1 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
369    
370     TE2 TB2 TB2 TB2 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
371    
372     TE3 TB3 TB3 TB3 CubicTorsionType 5.9602 -0.2568 -3.802 2.1586
373    
374    
375    
376     //CharmmTorsionType
377    
378     //Atom1 Atom2 Atom3 Atom4 CharmmTorsionType Kchi n delta [Kchi n delta]
379    
380     //V_CharmmTorsionType = Kchi(1 + cos(n(chi) - delta))
381    
382     //Kchi: kcal/mole
383    
384     //n: multiplicity
385    
386     //delta: degrees
387    
388     //in some cases, a CharmmTorsionType may have two or three terms. If n is equal to 0, it falls back to harmonic form
389    
390    
391    
392     //QuadraticTorsionType
393    
394     //Atom1 Atom2 Atom3 Atom4 QuadraticTorsionType k4 k3 k2 k1 k0 ( all are kcal/mol )
395    
396     //V_QuadraticTorsionType = k4(cos phi)^4 + k3(cos phi)^3 + k2(cos phi)^2 + k1(cos phi) + k0
397    
398    
399    
400     //PolynomialTorsionType
401    
402     //Atom1 Atom2 Atom3 Atom4 PolynomialTorsionType i Ki [j Kj]
403    
404     //VPolynomialTorsionType = Ki (cos phi)^i + ... + Kj (cos phi)^j
405    
406    
407    
408 tim 1755 end TorsionTypes