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

using model chemistry: M06-2X/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-229.080495
Energy at 298.15K 
HF Energy-229.080495
Nuclear repulsion energy121.716665
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/6-311+G(3df,2p)
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' 3832 3832 84.76 83.94 0.22 0.36
2 A' 3196 3196 2.33 41.42 0.70 0.82
3 A' 3082 3082 0.44 139.83 0.01 0.02
4 A' 1882 1882 370.35 10.16 0.29 0.45
5 A' 1477 1477 14.94 5.88 0.64 0.78
6 A' 1423 1423 84.69 0.46 0.34 0.51
7 A' 1352 1352 34.55 2.86 0.64 0.78
8 A' 1230 1230 217.97 1.47 0.72 0.84
9 A' 1010 1010 51.86 0.57 0.59 0.74
10 A' 884 884 3.03 12.39 0.06 0.12
11 A' 599 599 42.01 1.77 0.75 0.86
12 A' 428 428 4.45 0.31 0.74 0.85
13 A" 3149 3149 1.42 47.15 0.75 0.86
14 A" 1484 1484 8.86 3.80 0.75 0.86
15 A" 1073 1073 9.31 0.07 0.75 0.86
16 A" 667 667 93.41 0.37 0.75 0.86
17 A" 547 547 29.75 1.26 0.75 0.86
18 A" 81 81 0.14 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13697.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13697.9 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/6-311+G(3df,2p)
ABC
0.38345 0.31792 0.17957

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.055 -0.912 0.000
C2 0.000 0.155 0.000
O3 0.194 1.336 0.000
H4 2.036 -0.451 0.000
H5 0.932 -1.544 0.878
H6 0.932 -1.544 -0.878
O7 -1.239 -0.372 0.000
H8 -1.864 0.365 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 O7 H8
C11.50012.40691.08421.08901.08902.35673.1853
C21.50011.19692.12452.12702.12701.34661.8753
O32.40691.19692.56683.09963.09962.22942.2750
H41.08422.12452.56681.78471.78473.27653.9843
H51.08902.12703.09961.78471.75702.61873.4967
H61.08902.12703.09961.78471.75702.61873.4967
O72.35671.34662.22943.27652.61872.61870.9657
H83.18531.87532.27503.98433.49673.49670.9657

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 126.002 C1 C2 O7 111.653
C2 C1 H4 109.541 C2 C1 H5 109.453
C2 C1 H6 109.453 C2 O7 H8 107.245
O3 C2 O7 122.345 H4 C1 H5 110.411
H4 C1 H6 110.411 H5 C1 H6 107.540
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.579      
2 C 1.010      
3 O -0.788      
4 H 0.212      
5 H 0.216      
6 H 0.216      
7 O -0.555      
8 H 0.268      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.287 -1.749 0.000 1.772
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.238 -3.857 0.000
y -3.857 -27.410 0.000
z 0.000 0.000 -23.287
Traceless
 xyz
x 5.110 -3.857 0.000
y -3.857 -5.647 0.000
z 0.000 0.000 0.537
Polar
3z2-r21.074
x2-y27.171
xy-3.857
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.265 -0.135 0.000
y -0.135 5.460 0.000
z 0.000 0.000 3.745


<r2> (average value of r2) Å2
<r2> 70.547
(<r2>)1/2 8.399