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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-228.947705
Energy at 298.15K-228.952425
HF Energy-228.947705
Nuclear repulsion energy 
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 B97D3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3598 3527 26.81      
2 A' 3137 3075 8.70      
3 A' 3016 2957 3.61      
4 A' 1805 1770 263.79      
5 A' 1474 1445 14.20      
6 A' 1397 1370 43.52      
7 A' 1330 1304 20.23      
8 A' 1189 1166 204.26      
9 A' 981 962 69.71      
10 A' 840 824 3.02      
11 A' 567 556 36.85      
12 A' 413 405 4.42      
13 A" 3083 3022 7.79      
14 A" 1477 1448 8.36      
15 A" 1052 1031 8.03      
16 A" 681 668 104.65      
17 A" 534 523 16.32      
18 A" 56 55 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 13315.0 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 13054.1 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 B97D3/6-31G*
ABC
0.37075 0.31189 0.17494

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.074 -0.908 0.000
C2 0.000 0.159 0.000
O3 0.179 1.362 0.000
H4 2.059 -0.434 0.000
H5 0.966 -1.550 0.885
H6 0.966 -1.550 -0.885
O7 -1.249 -0.403 0.000
H8 -1.871 0.355 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 O7 H8
C11.51312.43981.09391.09901.09902.37693.2037
C21.51311.21672.14302.15332.15331.36941.8811
O32.43981.21672.60043.14413.14412.27012.2839
H41.09392.14302.60041.79611.79613.30874.0087
H51.09902.15333.14411.79611.77002.64703.5299
H61.09902.15333.14411.79611.77002.64703.5299
O72.37691.36942.27013.30872.64702.64700.9800
H83.20371.88112.28394.00873.52993.52990.9800

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 126.352 C1 C2 O7 110.998
C2 C1 H4 109.521 C2 C1 H5 110.033
C2 C1 H6 110.033 C2 O7 H8 105.182
O3 C2 O7 122.650 H4 C1 H5 109.979
H4 C1 H6 109.979 H5 C1 H6 107.271
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.530      
2 C 0.534      
3 O -0.436      
4 H 0.190      
5 H 0.190      
6 H 0.190      
7 O -0.538      
8 H 0.401      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.387 -1.491 0.000 1.540
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.656 -3.559 0.000
y -3.559 -26.500 0.000
z 0.000 0.000 -22.638
Traceless
 xyz
x 4.913 -3.559 0.000
y -3.559 -5.353 0.000
z 0.000 0.000 0.440
Polar
3z2-r20.879
x2-y26.844
xy-3.559
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.625 -0.143 0.000
y -0.143 4.704 0.000
z 0.000 0.000 2.820


<r2> (average value of r2) Å2
<r2> 71.505
(<r2>)1/2 8.456