Hi! I generated a LAMMPS input data file of a CNT (10,10) unit cell for a PCFF forcefield. During minimization, I am getting the following error message: “Invalid atom ID in Angles section of data file.” The error appears only when I try to minimize the system which consists of a single unit cell. For multiple unit cell scenarios, it works fine. Here is my input file.
LAMMPS data file. msi2lmp v3.9.9 / 05 Nov 2018 / CGCMM for CNT_UC_1
40 atoms
60 bonds
120 angles
120 dihedrals
40 impropers
1 atom types
1 bond types
1 angle types
1 dihedral types
1 improper types
-6.320800018 23.679199982 xlo xhi
-6.320800018 23.679199982 ylo yhi
-0.617199993 1.852200007 zlo zhi
Masses
1 12.011150 # cp
Pair Coeffs # lj/class2/coul/long
1 0.0640000000 4.0100000000 # cp
Bond Coeffs # class2
1 1.4170 470.8361 -627.6179 1327.6345 # cp-cp
Angle Coeffs # class2
1 118.9000 61.0226 -34.9931 0.0000 # cp-cp-cp
Dihedral Coeffs # class2
1 8.3667 0.0000 1.1932 0.0000 0.0000 0.0000# cp-cp-cp-cp
Improper Coeffs # class2
1 7.1794 0.0000 # cp-cp-cp-cp
BondBond Coeffs
1 68.2856 1.4170 1.4170
BondAngle Coeffs
1 28.8708 28.8708 1.4170 1.4170
AngleAngle Coeffs
1 0.0000 0.0000 0.0000 118.9000 118.9000 118.9000
AngleAngleTorsion Coeffs
1 0.0000 118.9000 118.9000
EndBondTorsion Coeffs
1 -0.1185 6.3204 0.0000 -0.1185 6.3204 0.0000 1.4170 1.4170
MiddleBondTorsion Coeffs
1 27.5989 -2.3120 0.0000 1.4170
BondBond13 Coeffs
1 53.0000 1.4170 1.4170
AngleTorsion Coeffs
1 1.9767 1.0239 0.0000 1.9767 1.0239 0.0000 118.9000 118.9000
Atoms # full
1 1 1 0.000000 15.318179499 8.250704498 0.000124440 0 0 0 # cp
2 1 1 0.000000 15.260602409 9.651142501 0.000124603 0 0 0 # cp
3 1 1 0.000000 15.125632420 10.323216849 1.234874639 0 0 0 # cp
4 1 1 0.000000 14.638074400 11.637304181 1.234874891 0 0 0 # cp
5 1 1 0.000000 14.302025147 12.234775398 0.000124939 0 0 0 # cp
6 1 1 0.000000 13.432281414 13.333902335 0.000125127 0 0 0 # cp
7 1 1 0.000000 12.928070237 13.798307424 1.234875166 0 0 0 # cp
8 1 1 0.000000 11.761282434 14.574929150 1.234875320 0 0 0 # cp
9 1 1 0.000000 11.138249090 14.860814374 0.000125329 0 0 0 # cp
10 1 1 0.000000 9.788579001 15.238876205 0.000125349 0 0 0 # cp
11 1 1 0.000000 9.107693852 15.318225224 1.234875360 0 0 0 # cp
12 1 1 0.000000 7.707255579 15.260647878 1.234875382 0 0 0 # cp
13 1 1 0.000000 7.035181653 15.125675536 0.000125373 0 0 0 # cp
14 1 1 0.000000 5.721097266 14.638108972 0.000125356 0 0 0 # cp
15 1 1 0.000000 5.123628815 14.302054827 1.234875336 0 0 0 # cp
16 1 1 0.000000 4.024510226 13.432300497 1.234875190 0 0 0 # cp
17 1 1 0.000000 3.560110217 12.928084660 0.000125179 0 0 0 # cp
18 1 1 0.000000 2.783500119 11.761289166 0.000125148 0 0 0 # cp
19 1 1 0.000000 2.497620238 11.138253356 1.234875139 0 0 0 # cp
20 1 1 0.000000 2.119567205 9.788580952 1.234875136 0 0 0 # cp
21 1 1 0.000000 2.040220449 9.107695539 0.000125152 0 0 0 # cp
22 1 1 0.000000 2.097797967 7.707257563 0.000125168 0 0 0 # cp
23 1 1 0.000000 2.232768013 7.035183225 1.234875166 0 0 0 # cp
24 1 1 0.000000 2.720326050 5.721095930 1.234875140 0 0 0 # cp
25 1 1 0.000000 3.056375064 5.123624585 0.000125137 0 0 0 # cp
26 1 1 0.000000 3.926118267 4.024497226 0.000125180 0 0 0 # cp
27 1 1 0.000000 4.430329331 3.560092013 1.234875182 0 0 0 # cp
28 1 1 0.000000 5.597117298 2.783470477 1.234875145 0 0 0 # cp
29 1 1 0.000000 6.220150757 2.497585475 0.000125121 0 0 0 # cp
30 1 1 0.000000 7.569820992 2.119524168 0.000125049 0 0 0 # cp
31 1 1 0.000000 8.250706152 2.040175266 1.234875018 0 0 0 # cp
32 1 1 0.000000 9.651144417 2.097752470 1.234874900 0 0 0 # cp
33 1 1 0.000000 10.323218365 2.232724593 0.000124873 0 0 0 # cp
34 1 1 0.000000 11.637302950 2.720290592 0.000124712 0 0 0 # cp
35 1 1 0.000000 12.234771438 3.056344678 1.234874669 0 0 0 # cp
36 1 1 0.000000 13.333889858 3.926099251 1.234874525 0 0 0 # cp
37 1 1 0.000000 13.798289619 4.430315290 0.000124505 0 0 0 # cp
38 1 1 0.000000 14.574899310 5.597111010 0.000124424 0 0 0 # cp
39 1 1 0.000000 14.860779157 6.220146832 1.234874401 0 0 0 # cp
40 1 1 0.000000 15.238832588 7.569819105 1.234874420 0 0 0 # cp
Bonds
1 1 1 2
2 1 1 40
3 1 1 40
4 1 2 3
5 1 2 3
6 1 3 4
7 1 4 5
8 1 4 5
9 1 5 6
10 1 6 7
11 1 6 7
12 1 7 8
13 1 8 9
14 1 8 9
15 1 9 10
16 1 10 11
17 1 10 11
18 1 11 12
19 1 12 13
20 1 12 13
21 1 13 14
22 1 14 15
23 1 14 15
24 1 15 16
25 1 16 17
26 1 16 17
27 1 17 18
28 1 18 19
29 1 18 19
30 1 19 20
31 1 20 21
32 1 20 21
33 1 21 22
34 1 22 23
35 1 22 23
36 1 23 24
37 1 24 25
38 1 24 25
39 1 25 26
40 1 26 27
41 1 26 27
42 1 27 28
43 1 28 29
44 1 28 29
45 1 29 30
46 1 30 31
47 1 30 31
48 1 31 32
49 1 32 33
50 1 32 33
51 1 33 34
52 1 34 35
53 1 34 35
54 1 35 36
55 1 36 37
56 1 36 37
57 1 37 38
58 1 38 39
59 1 38 39
60 1 39 40
Angles
1 1 2 1 40
2 1 2 1 40
3 1 40 1 40
4 1 1 2 3
5 1 1 2 3
6 1 3 2 3
7 1 2 3 4
8 1 2 3 2
9 1 4 3 2
10 1 3 4 5
11 1 3 4 5
12 1 5 4 5
13 1 4 5 6
14 1 4 5 4
15 1 6 5 4
16 1 5 6 7
17 1 5 6 7
18 1 7 6 7
19 1 6 7 8
20 1 6 7 6
21 1 8 7 6
22 1 7 8 9
23 1 7 8 9
24 1 9 8 9
25 1 8 9 10
26 1 8 9 8
27 1 10 9 8
28 1 9 10 11
29 1 9 10 11
30 1 11 10 11
31 1 10 11 12
32 1 10 11 10
33 1 12 11 10
34 1 11 12 13
35 1 11 12 13
36 1 13 12 13
37 1 12 13 14
38 1 12 13 12
39 1 14 13 12
40 1 13 14 15
41 1 13 14 15
42 1 15 14 15
43 1 14 15 16
44 1 14 15 14
45 1 16 15 14
46 1 15 16 17
47 1 15 16 17
48 1 17 16 17
49 1 16 17 18
50 1 16 17 16
51 1 18 17 16
52 1 17 18 19
53 1 17 18 19
54 1 19 18 19
55 1 18 19 20
56 1 18 19 18
57 1 20 19 18
58 1 19 20 21
59 1 19 20 21
60 1 21 20 21
61 1 20 21 22
62 1 20 21 20
63 1 22 21 20
64 1 21 22 23
65 1 21 22 23
66 1 23 22 23
67 1 22 23 24
68 1 22 23 22
69 1 24 23 22
70 1 23 24 25
71 1 23 24 25
72 1 25 24 25
73 1 24 25 26
74 1 24 25 24
75 1 26 25 24
76 1 25 26 27
77 1 25 26 27
78 1 27 26 27
79 1 26 27 28
80 1 26 27 26
81 1 28 27 26
82 1 27 28 29
83 1 27 28 29
84 1 29 28 29
85 1 28 29 30
86 1 28 29 28
87 1 30 29 28
88 1 29 30 31
89 1 29 30 31
90 1 31 30 31
91 1 30 31 32
92 1 30 31 30
93 1 32 31 30
94 1 31 32 33
95 1 31 32 33
96 1 33 32 33
97 1 32 33 34
98 1 32 33 32
99 1 34 33 32
100 1 33 34 35
101 1 33 34 35
102 1 35 34 35
103 1 34 35 36
104 1 34 35 34
105 1 36 35 34
106 1 35 36 37
107 1 35 36 37
108 1 37 36 37
109 1 36 37 38
110 1 36 37 36
111 1 38 37 36
112 1 37 38 39
113 1 37 38 39
114 1 39 38 39
115 1 38 39 40
116 1 38 39 38
117 1 40 39 38
118 1 1 40 39
119 1 1 40 1
120 1 39 40 1
Dihedrals
1 1 40 1 2 3
2 1 40 1 2 3
3 1 40 1 2 3
4 1 40 1 2 3
5 1 2 1 40 39
6 1 2 1 40 39
7 1 1 2 3 4
8 1 1 2 3 4
9 1 2 3 4 5
10 1 2 3 4 5
11 1 2 3 4 5
12 1 2 3 4 5
13 1 3 4 5 6
14 1 3 4 5 6
15 1 4 5 6 7
16 1 4 5 6 7
17 1 4 5 6 7
18 1 4 5 6 7
19 1 5 6 7 8
20 1 5 6 7 8
21 1 6 7 8 9
22 1 6 7 8 9
23 1 6 7 8 9
24 1 6 7 8 9
25 1 7 8 9 10
26 1 7 8 9 10
27 1 8 9 10 11
28 1 8 9 10 11
29 1 8 9 10 11
30 1 8 9 10 11
31 1 9 10 11 12
32 1 9 10 11 12
33 1 10 11 12 13
34 1 10 11 12 13
35 1 10 11 12 13
36 1 10 11 12 13
37 1 11 12 13 14
38 1 11 12 13 14
39 1 12 13 14 15
40 1 12 13 14 15
41 1 12 13 14 15
42 1 12 13 14 15
43 1 13 14 15 16
44 1 13 14 15 16
45 1 14 15 16 17
46 1 14 15 16 17
47 1 14 15 16 17
48 1 14 15 16 17
49 1 15 16 17 18
50 1 15 16 17 18
51 1 16 17 18 19
52 1 16 17 18 19
53 1 16 17 18 19
54 1 16 17 18 19
55 1 17 18 19 20
56 1 17 18 19 20
57 1 18 19 20 21
58 1 18 19 20 21
59 1 18 19 20 21
60 1 18 19 20 21
61 1 19 20 21 22
62 1 19 20 21 22
63 1 20 21 22 23
64 1 20 21 22 23
65 1 20 21 22 23
66 1 20 21 22 23
67 1 21 22 23 24
68 1 21 22 23 24
69 1 22 23 24 25
70 1 22 23 24 25
71 1 22 23 24 25
72 1 22 23 24 25
73 1 23 24 25 26
74 1 23 24 25 26
75 1 24 25 26 27
76 1 24 25 26 27
77 1 24 25 26 27
78 1 24 25 26 27
79 1 25 26 27 28
80 1 25 26 27 28
81 1 26 27 28 29
82 1 26 27 28 29
83 1 26 27 28 29
84 1 26 27 28 29
85 1 27 28 29 30
86 1 27 28 29 30
87 1 28 29 30 31
88 1 28 29 30 31
89 1 28 29 30 31
90 1 28 29 30 31
91 1 29 30 31 32
92 1 29 30 31 32
93 1 30 31 32 33
94 1 30 31 32 33
95 1 30 31 32 33
96 1 30 31 32 33
97 1 31 32 33 34
98 1 31 32 33 34
99 1 32 33 34 35
100 1 32 33 34 35
101 1 32 33 34 35
102 1 32 33 34 35
103 1 33 34 35 36
104 1 33 34 35 36
105 1 34 35 36 37
106 1 34 35 36 37
107 1 34 35 36 37
108 1 34 35 36 37
109 1 35 36 37 38
110 1 35 36 37 38
111 1 36 37 38 39
112 1 36 37 38 39
113 1 36 37 38 39
114 1 36 37 38 39
115 1 37 38 39 40
116 1 37 38 39 40
117 1 38 39 40 1
118 1 38 39 40 1
119 1 38 39 40 1
120 1 38 39 40 1
Impropers
1 1 2 1 40 40
2 1 1 2 3 3
3 1 2 3 4 2
4 1 3 4 5 5
5 1 4 5 6 4
6 1 5 6 7 7
7 1 6 7 8 6
8 1 7 8 9 9
9 1 8 9 10 8
10 1 9 10 11 11
11 1 10 11 12 10
12 1 11 12 13 13
13 1 12 13 14 12
14 1 13 14 15 15
15 1 14 15 16 14
16 1 15 16 17 17
17 1 16 17 18 16
18 1 17 18 19 19
19 1 18 19 20 18
20 1 19 20 21 21
21 1 20 21 22 20
22 1 21 22 23 23
23 1 22 23 24 22
24 1 23 24 25 25
25 1 24 25 26 24
26 1 25 26 27 27
27 1 26 27 28 26
28 1 27 28 29 29
29 1 28 29 30 28
30 1 29 30 31 31
31 1 30 31 32 30
32 1 31 32 33 33
33 1 32 33 34 32
34 1 33 34 35 35
35 1 34 35 36 34
36 1 35 36 37 37
37 1 36 37 38 36
38 1 37 38 39 39
39 1 38 39 40 38
40 1 1 40 39 1