WebMO Job Summary

359522: Methyl acetate (C3H6O2), Optimize + Vib Freq - Gaussian

Calculated Quantities

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Overview

Quantity Value
Route #N MP2/6-31G(d) OPT FREQ Geom=Connectivity
Stoichiometry C3H6O2
Symmetry CS
Basis 6-31G(d)
RHF Energy -266.832874975 Hartree
MP2 Energy -267.57323713435 Hartree
ZPE 0.092173 Hartree
Conditions 298.150K, 1.00000 atm
Internal Energy -267.475009 Hartree
Enthalpy -267.474065 Hartree
Free Energy -267.510548 Hartree
Cv 19.124 cal/mol-K
Entropy 76.785 cal/mol-K
Dipole Moment 1.9574 Debye
Server batch (369241)
CPU time 147 sec

Geometry Sequence Energies

Step Energy  
0 -266.829250591  
1 -266.833314004  
2 -266.833085226  
3 -266.832862905  
4 -266.832874975  
5 -266.832874975  
6 -266.832874975  
Animation speed  
Loop  

Rotational Constants

Constant Frequency (GHz) Frequency (cm-1)
a 10.07301 0.33599944666
b 4.18079 0.13945614336
c 3.06796 0.10233613015

Partial Charges

Atom Symbol Charge
1 C -0.561823  
2 C 0.773174  
3 O -0.617257  
4 C -0.182973  
5 H 0.182954  
6 H 0.185645  
7 H 0.185645  
8 O -0.581189  
9 H 0.203883  
10 H 0.203883  
11 H 0.208057  

Vibrational Modes

Mode Symmetry Frequency (cm-1) IR (Raman) Intensity Actions
1 A" 72.5907 0.5663
2 A" 154.7913 0.5097
3 A" 183.9338 7.2471
4 A' 292.0781 12.3330
5 A' 429.4661 6.0967
6 A" 607.8351 6.2565
7 A' 653.1657 7.1216
8 A' 874.8466 20.7352
9 A' 1017.2596 2.2241
10 A" 1097.0631 6.7667
11 A' 1108.5823 69.8020
12 A" 1205.7371 1.1383
13 A' 1236.7725 2.1770
14 A' 1322.0681 328.8895
15 A' 1454.5186 58.4498
16 A' 1520.4523 12.4914
17 A' 1537.0162 14.5498
18 A" 1537.8704 8.1827
19 A" 1550.1611 6.2106
20 A' 1559.7187 7.3498
21 A' 1833.1357 178.6910
22 A' 3128.8673 0.5032
23 A' 3131.1181 24.5764
24 A" 3215.5158 3.0782
25 A" 3226.8699 17.7673
26 A' 3250.9033 3.7268
27 A' 3256.7626 13.3066
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