WebMO Job Summary
112025: C13H18O2 (S)-ibuprofen, Optimize + Vib Freq - Gaussian
Raw Output
Save Notes
Calculated Quantities
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Overview
Quantity
Value
Route
#N B3LYP/6-31G(d) OPT FREQ Geom=Connectivity
Stoichiometry
C
13
H
18
O
2
Symmetry
C1
Basis
6-31G(d)
RB3LYP Energy
-656.704410555 Hartree
ZPE
0.285976 Hartree
Conditions
298.150K, 1.00000 atm
Internal Energy
-656.402766 Hartree
Enthalpy
-656.401822 Hartree
Free Energy
-656.462948 Hartree
C
v
58.526 cal/mol-K
Entropy
128.651 cal/mol-K
Dipole Moment
1.5678 Debye
Server
batch (114095)
CPU time
11072.3 sec
Geometry Sequence Energies
Step
Energy
0
-656.576649269
1
-656.656222233
2
-656.651321312
3
-656.660376234
4
-656.688252388
5
-656.690438239
6
-656.694519636
7
-656.693703764
8
-656.695633739
9
-656.693342964
10
-656.696217064
11
-656.697635861
12
-656.699251693
13
-656.701117195
14
-656.702161040
15
-656.702196020
16
-656.701936951
17
-656.702815094
18
-656.703359106
19
-656.703926935
20
-656.704153584
21
-656.704341300
22
-656.704399594
23
-656.704403253
24
-656.704408844
25
-656.704410239
26
-656.704410566
27
-656.704410599
28
-656.704410555
29
-656.704410555
30
-656.704410555
Animation speed
Loop
None
Loop
Cycle
Rotational Constants
Constant
Frequency (GHz)
Frequency (cm
-1
)
a
1.35723
0.04527231969
b
0.25435
0.00848420276
c
0.24226
0.00808092377
Partial Charges
Atom
Symbol
Charge
1
C
-0.237427
2
C
-0.436592
3
H
0.150585
4
H
0.172691
5
H
0.151907
6
C
0.155011
7
C
-0.186261
8
C
-0.181258
9
C
0.178363
10
C
-0.187813
11
C
-0.179815
12
H
0.152009
13
H
0.126432
14
C
-0.344730
15
C
-0.064549
16
C
-0.440798
17
H
0.142414
18
H
0.138956
19
H
0.139721
20
C
-0.446012
21
H
0.140155
22
H
0.134907
23
H
0.155867
24
H
0.126749
25
H
0.140046
26
H
0.135378
27
H
0.123658
28
H
0.125961
29
C
0.589492
30
O
-0.569862
31
H
0.407074
32
O
-0.469194
33
H
0.156937
Vibrational Modes
Mode
Symmetry
Frequency (cm
-1
)
IR (Raman) Intensity
Actions
1
A
28.6634
0.0963
2
A
37.8782
1.3091
3
A
48.7114
0.6878
4
A
56.3217
0.4051
5
A
68.2630
0.1893
6
A
112.0060
0.1509
7
A
156.5772
0.1335
8
A
196.7154
0.3917
9
A
224.1776
0.3152
10
A
229.0752
0.3704
11
A
244.7743
0.1783
12
A
253.1918
0.7888
13
A
297.7052
0.9088
14
A
315.5134
0.4219
15
A
345.0719
1.0992
16
A
381.7645
0.5067
17
A
406.6465
0.1746
18
A
420.7671
0.0362
19
A
423.0635
1.5571
20
A
445.3249
7.3914
21
A
556.8292
4.4078
22
A
566.2626
27.4397
23
A
630.9090
35.0920
24
A
653.0712
40.4545
25
A
666.6212
27.9492
26
A
723.0107
41.8003
27
A
748.5360
15.1829
28
A
807.3822
6.3083
29
A
818.3813
13.9131
30
A
838.9103
0.2228
31
A
858.7096
4.7721
32
A
859.4963
1.6432
33
A
871.8626
17.0235
34
A
900.9236
1.6077
35
A
940.8217
2.3939
36
A
958.9873
0.7246
37
A
964.2772
0.0628
38
A
976.1919
0.0621
39
A
978.7952
0.2079
40
A
1014.6754
3.0022
41
A
1041.7371
4.4508
42
A
1092.2020
33.6707
43
A
1104.7752
15.6853
44
A
1115.5921
21.0483
45
A
1145.4150
3.2478
46
A
1158.1698
14.2915
47
A
1180.3381
206.6172
48
A
1202.3130
11.9134
49
A
1218.6696
15.7502
50
A
1226.4341
8.7780
51
A
1236.8453
3.2143
52
A
1259.2485
2.1224
53
A
1297.4775
3.9023
54
A
1325.3402
2.8989
55
A
1331.3909
4.0269
56
A
1360.5290
1.8379
57
A
1376.3165
0.5625
58
A
1387.4752
1.6387
59
A
1390.6714
2.4026
60
A
1416.9803
50.4527
61
A
1429.6191
4.7140
62
A
1436.5264
7.3418
63
A
1449.0080
4.3606
64
A
1470.6713
10.2789
65
A
1511.5780
0.7397
66
A
1518.9044
1.1397
67
A
1521.2723
3.8141
68
A
1526.1868
1.1408
69
A
1526.5933
9.3980
70
A
1534.2604
3.7082
71
A
1539.4790
8.7976
72
A
1561.1310
22.2181
73
A
1628.4766
0.0081
74
A
1671.1195
0.5901
75
A
1835.4286
230.4367
76
A
3017.1019
6.6772
77
A
3028.5743
28.0297
78
A
3035.5639
35.0317
79
A
3041.9305
37.5665
80
A
3062.4258
27.9386
81
A
3067.7054
20.1203
82
A
3083.0849
9.3289
83
A
3097.9333
8.2656
84
A
3104.0685
56.1749
85
A
3109.2427
49.7852
86
A
3124.0064
35.9418
87
A
3130.3318
29.5851
88
A
3151.9207
13.6146
89
A
3170.4217
13.9017
90
A
3178.6757
16.2332
91
A
3188.3258
21.1614
92
A
3203.8351
5.0420
93
A
3678.9230
45.6228
Frequency Scale Factor
Normal Mode Amplitude
Animation Speed
IR Spectrum
Peak Width (cm
-1
)
Quote
NECESSARY EVIL: ONE WE LIKE TOO MUCH TO RELINQUISH.