WebMO Job Summary

122262: C4H4O3 succinic anhydride C2v, Optimize + Vib Freq - Gaussian

Calculated Quantities

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Overview

Quantity Value
Route #N B3LYP/6-311+G(2d,p) OPT FREQ Geom=Connectivity
Method B3LYP
Stoichiometry C4H4O3
Symmetry C2V
Basis 6-311+G(2d,p)
RB3LYP Energy -380.649286188 Hartree
ZPE 0.078645 Hartree
Conditions 298.150K, 1.00000 atm
Internal Energy -380.564797 Hartree
Enthalpy -380.563852 Hartree
Free Energy -380.600491 Hartree
Cv 20.432 cal/mol-K
Entropy 77.113 cal/mol-K
Dipole Moment 4.6174 Debye
Server class (123031)
CPU time 344.8 sec

Geometry Sequence Energies

Step Energy (au)  
0 -380.649286188  
1 -380.649286188  
2 -380.649286188  
Animation speed  
Loop  

Rotational Constants

Constant Frequency (GHz) Frequency (cm-1)
a 5.93934 0.19811505732
b 2.35941 0.07870144619
c 1.72439 0.05751945901

Partial Charges

Atom Symbol Charge
1 C -0.176587  
2 C -0.176587  
3 C 0.508860  
4 O -0.415187  
5 C 0.508860  
6 O -0.418281  
7 O -0.418281  
8 H 0.146801  
9 H 0.146801  
10 H 0.146801  
11 H 0.146801  

Vibrational Modes

Mode Symmetry Frequency (cm-1) IR Intensity Actions
1 A2 53.4356 0.0000
2 B1 140.5551 4.3484
3 A1 400.9696 11.9208
4 B1 550.3967 5.3828
5 A2 552.3516 0.0000
6 B2 556.5400 7.7022
7 A1 625.0930 2.0593
8 B2 663.7999 65.4136
9 A1 810.4467 0.6743
10 B1 823.4930 12.6407
11 B2 914.4087 192.4258
12 A1 1019.2288 5.5477
13 A2 1031.5770 0.0000
14 B2 1048.1418 312.4051
15 B1 1172.4972 2.3991
16 A1 1218.8093 176.5156
17 A2 1257.0025 0.0000
18 A1 1299.4021 18.2174
19 B2 1320.5283 7.1479
20 B2 1457.0297 0.3536
21 A1 1476.5065 23.7464
22 B2 1843.8336 698.1514
23 A1 1914.9404 115.1466
24 B2 3071.9287 8.0449
25 A1 3076.8945 0.0042
26 A2 3102.9863 0.0000
27 B1 3118.3698 1.2079
Frequency Scale Factor
Normal Mode Amplitude
Animation Speed
IR Spectrum  
Peak Width (cm-1)

Quote

The juvenile sea squirt wanders through the sea searching for a suitable rock or hunk of coral to cling to and make its home for life. For this task it has a rudimentary nervous system. When it finds its spot and takes root, it doesn't need its brain any more so it eats it. It's rather like getting tenure. -- source unknown