WebMO Job Summary

567493: 8. Maleic Anhydride (C4H2O3), Optimize + Vib Freq - Gaussian

Calculated Quantities

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Overview

Quantity Value
Route #N M062X/cc-pVTZ OPT FREQ Geom=Connectivity
Stoichiometry C4H2O3
Symmetry C2V
Basis CC-pVTZ
RM062X Energy -379.295350968 Hartree
ZPE 0.056675 Hartree
Conditions 298.150K, 1.00000 atm
Internal Energy -379.233580 Hartree
Enthalpy -379.232635 Hartree
Free Energy -379.267022 Hartree
Cv 18.175 cal/mol-K
Entropy 72.372 cal/mol-K
Dipole Moment 4.1850 Debye
Server chem344 (2215469)
CPU time 1470.2 sec

Geometry Sequence Energies

Step Energy  
0 -379.295350182  
1 -379.295350968  
2 -379.295350968  
3 -379.295350968  
Animation speed  
Loop  

Rotational Constants

Constant Frequency (GHz) Frequency (cm-1)
a 6.89097 0.22985801731
b 2.49606 0.08325959955
c 1.83234 0.06112028342

Partial Charges

Atom Symbol Charge
1 C 0.325761  
2 C -0.153066  
3 C -0.153066  
4 C 0.325761  
5 O -0.161419  
6 O -0.259395  
7 H 0.167410  
8 H 0.167410  
9 O -0.259395  

Vibrational Modes

Mode Symmetry Frequency (cm-1) IR (Raman) Intensity Actions
1 B1 170.2871 3.3282
2 A2 270.3375 0.0000
3 A1 415.4145 12.3652
4 B2 568.6664 2.5951
5 A1 649.9654 0.1873
6 B1 650.1792 0.0095
7 B2 715.8013 30.2418
8 A2 799.6165 0.0000
9 B1 877.8158 78.3440
10 A1 895.9537 4.2736
11 B2 961.1835 109.5513
12 A2 1007.0019 0.0000
13 A1 1070.9678 15.5757
14 B2 1090.3543 113.6385
15 A1 1310.6971 177.8683
16 B2 1335.5338 1.1635
17 A1 1685.3093 2.9524
18 B2 1918.1463 735.6292
19 A1 1985.5458 76.1827
20 B2 3238.7997 3.5696
21 A1 3259.7955 3.9952
Frequency Scale Factor
Normal Mode Amplitude
Animation Speed
IR Spectrum  
Peak Width (cm-1)

Quote

IT MATTERS NOT HOW DEEP YOU PLOW, BUT HOW LONG YOU STAY IN THE FURROW.