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

using model chemistry: B97D3/6-311+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 B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-229.044381
Energy at 298.15K-229.049095
HF Energy-229.044381
Nuclear repulsion energy120.644119
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 B97D3/6-311+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' 3680 3632 41.22      
2 A' 3114 3073 6.70      
3 A' 2999 2960 2.99      
4 A' 1770 1747 319.41      
5 A' 1445 1426 16.76      
6 A' 1371 1353 36.91      
7 A' 1302 1285 25.14      
8 A' 1166 1150 204.05      
9 A' 968 956 85.05      
10 A' 833 822 5.40      
11 A' 570 563 32.15      
12 A' 417 411 4.55      
13 A" 3060 3020 5.61      
14 A" 1449 1430 8.34      
15 A" 1038 1024 5.81      
16 A" 655 646 85.06      
17 A" 532 525 21.71      
18 A" 51 50 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 13208.4 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 13036.7 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 B97D3/6-311+G(3df,2p)
ABC
0.37444 0.31402 0.17638

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.075 -0.899 0.000
C2 0.000 0.158 0.000
O3 0.175 1.354 0.000
H4 2.055 -0.425 0.000
H5 0.968 -1.539 0.881
H6 0.968 -1.539 -0.881
O7 -1.246 -0.402 0.000
H8 -1.875 0.338 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 O7 H8
C11.50732.42561.08891.09421.09422.37313.1991
C21.50731.20862.13622.14302.14301.36551.8840
O32.42561.20862.58813.12633.12632.25812.2880
H41.08892.13622.58811.78901.78903.30084.0039
H51.09422.14303.12631.78901.76142.63973.5189
H61.09422.14303.12631.78901.76142.63973.5189
O72.37311.36552.25813.30082.63972.63970.9715
H83.19911.88402.28804.00393.51893.51890.9715

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 126.186 C1 C2 O7 111.300
C2 C1 H4 109.682 C2 C1 H5 109.904
C2 C1 H6 109.904 C2 O7 H8 106.218
O3 C2 O7 122.514 H4 C1 H5 110.064
H4 C1 H6 110.064 H5 C1 H6 107.190
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.290      
2 C 0.815      
3 O -0.696      
4 H 0.143      
5 H 0.141      
6 H 0.141      
7 O -0.497      
8 H 0.242      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.242 -1.714 0.000 1.731
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.292 -3.603 0.000
y -3.603 -27.513 0.000
z 0.000 0.000 -23.282
Traceless
 xyz
x 5.105 -3.603 0.000
y -3.603 -5.726 0.000
z 0.000 0.000 0.621
Polar
3z2-r21.241
x2-y27.220
xy-3.603
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.817 -0.177 0.000
y -0.177 5.880 0.000
z 0.000 0.000 3.970


<r2> (average value of r2) Å2
<r2> 71.534
(<r2>)1/2 8.458