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All results from a given calculation for CH3COOH (Acetic acid)

using model chemistry: M06-2X/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/aug-cc-pVTZ
 hartrees
Energy at 0K-229.089323
Energy at 298.15K 
HF Energy-229.089323
Nuclear repulsion energy121.646770
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at M06-2X/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3805 3637 86.28      
2 A' 3181 3040 1.85      
3 A' 3067 2931 0.30      
4 A' 1876 1793 371.32      
5 A' 1470 1405 14.33      
6 A' 1418 1355 89.24      
7 A' 1346 1286 28.75      
8 A' 1225 1171 220.63      
9 A' 1001 957 52.68      
10 A' 886 846 2.80      
11 A' 599 573 42.25      
12 A' 424 406 4.32      
13 A" 3136 2997 0.98      
14 A" 1472 1407 8.34      
15 A" 1067 1019 9.44      
16 A" 660 630 94.56      
17 A" 541 517 28.31      
18 A" 130i 124i 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 13522.1 cm-1
Scaled (by 0.9557) Zero Point Vibrational Energy (zpe) 12923.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at M06-2X/aug-cc-pVTZ
ABC
0.38266 0.31796 0.17941

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.002 -0.971 0.000
C2 0.000 0.140 0.000
O3 0.278 1.314 0.000
H4 1.986 -0.521 0.000
H5 0.870 -1.599 0.881
H6 0.870 -1.599 -0.881
O7 -1.269 -0.290 0.000
H8 -1.809 0.511 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 O7 H8
C11.49642.39671.08231.08971.08972.37103.1772
C21.49641.20572.09322.13502.13501.33991.8461
O32.39671.20572.50653.09993.09992.22792.2355
H41.08232.09322.50651.78421.78423.26333.9323
H51.08972.13503.09991.78421.76192.65823.5217
H61.08972.13503.09991.78421.76192.65823.5217
O72.37101.33992.22793.26332.65822.65820.9653
H83.17721.84612.23553.93233.52173.52170.9653

picture of Acetic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 124.642 C1 C2 O7 113.312
C2 C1 H4 107.443 C2 C1 H5 110.301
C2 C1 H6 110.301 C2 O7 H8 105.255
O3 C2 O7 122.046 H4 C1 H5 110.465
H4 C1 H6 110.465 H5 C1 H6 107.882
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.606      
2 C 0.538      
3 O -0.638      
4 H 0.264      
5 H 0.291      
6 H 0.291      
7 O -0.415      
8 H 0.276      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.269 -1.769 0.000 1.790
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.208 -3.795 0.000
y -3.795 -27.510 0.000
z 0.000 0.000 -23.282
Traceless
 xyz
x 5.188 -3.795 0.000
y -3.795 -5.765 0.000
z 0.000 0.000 0.577
Polar
3z2-r21.154
x2-y27.302
xy-3.795
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.359 -0.144 0.000
y -0.144 5.552 0.000
z 0.000 0.000 3.839


<r2> (average value of r2) Å2
<r2> 70.599
(<r2>)1/2 8.402