WebMO Job Summary
33043: C4H6O3 acetic anhydride C2, Optimize + Vib Freq - Gaussian
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Calculated Quantities
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Overview
Quantity
Value
Route
#N B3LYP/6-311+G(2d,p) OPT FREQ SCRF=(PCM,Solvent=Water) Geom=Connectivity
Method
B3LYP
Stoichiometry
C
4
H
6
O
3
Symmetry
C2
Basis
6-311+G(2d,p)
RB3LYP Energy
-381.867818009 Hartree
ZPE
0.097322 Hartree
Conditions
298.150K, 1.00000 atm
Internal Energy
-381.762356 Hartree
Enthalpy
-381.761411 Hartree
Free Energy
-381.803430 Hartree
C
v
26.440 cal/mol-K
Entropy
88.436 cal/mol-K
Dipole Moment
5.3943 Debye
Server
class (33324)
CPU time
1631.3 sec
Geometry Sequence Energies
Step
Energy (au)
0
-381.866506241
1
-381.866851290
2
-381.867143611
3
-381.866720583
4
-381.867569555
5
-381.867704759
6
-381.867783275
7
-381.867797089
8
-381.867803905
9
-381.867806730
10
-381.867811894
11
-381.867817622
12
-381.867818009
13
-381.867818009
14
-381.867818009
Animation speed
Loop
None
Loop
Cycle
Rotational Constants
Constant
Frequency (GHz)
Frequency (cm
-1
)
a
5.51431
0.18393758258
b
1.80225
0.06011658906
c
1.50412
0.05017204269
Partial Charges
Atom
Symbol
Charge
1
C
-0.424752
2
C
0.589933
3
O
-0.384368
4
C
0.589933
5
C
-0.424752
6
H
0.155490
7
H
0.167707
8
H
0.165650
9
O
-0.461844
10
O
-0.461844
11
H
0.155490
12
H
0.167707
13
H
0.165650
Vibrational Modes
Show all
Mode
Symmetry
Frequency (cm
-1
)
IR Intensity
Actions
1
A
52.2124
3.2382
2
B
70.2702
2.5396
3
B
106.6141
0.1010
4
A
109.4120
0.0272
5
A
190.8240
1.6533
6
A
338.7694
3.6800
7
B
419.2492
0.5561
8
B
533.6006
33.0468
9
A
564.9175
0.0980
10
B
596.1565
43.9720
11
A
673.5949
0.0001
12
A
807.1762
30.8455
13
B
899.2467
213.9779
14
B
981.2379
697.4959
15
A
1026.4592
2.7943
16
B
1062.3694
27.5342
17
A
1072.7336
4.4020
18
B
1124.5744
685.6444
19
A
1225.6770
9.5119
20
B
1394.8762
73.9964
21
A
1397.6072
22.5227
22
B
1455.3505
5.8483
23
A
1455.9615
52.0836
24
B
1461.4189
30.2782
25
A
1462.4156
0.0582
26
B
1765.5123
171.3747
27
A
1834.3907
751.7322
28
B
3050.1838
0.0899
29
A
3050.3595
0.0052
30
B
3109.6390
2.6629
31
A
3109.6447
0.9942
32
B
3158.4183
14.6072
33
A
3158.5388
1.3432
Frequency Scale Factor
Normal Mode Amplitude
Animation Speed
IR Spectrum
Peak Width (cm
-1
)
Quote
In the race for quality, there is no finish line. -- David T. Kearns