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

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-228.942817
Energy at 298.15K-228.947666
HF Energy-228.942817
Nuclear repulsion energy121.677834
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 HSEh1PBE/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' 3793 3645 61.51      
2 A' 3191 3067 3.57      
3 A' 3072 2953 1.08      
4 A' 1858 1786 324.66      
5 A' 1465 1408 15.49      
6 A' 1415 1360 90.40      
7 A' 1348 1295 18.13      
8 A' 1220 1173 209.68      
9 A' 1001 962 52.48      
10 A' 881 846 3.24      
11 A' 591 568 41.38      
12 A' 424 407 4.36      
13 A" 3140 3018 2.86      
14 A" 1470 1413 9.38      
15 A" 1066 1025 9.06      
16 A" 678 652 91.06      
17 A" 551 529 24.60      
18 A" 78 75 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 13619.6 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 13089.8 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 HSEh1PBE/cc-pVTZ
ABC
0.38231 0.31876 0.17958

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.051 -0.911 0.000
C2 0.000 0.154 0.000
O3 0.196 1.338 0.000
H4 2.035 -0.452 0.000
H5 0.933 -1.547 0.878
H6 0.933 -1.547 -0.878
O7 -1.240 -0.374 0.000
H8 -1.853 0.373 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 O7 H8
C11.49572.40591.08551.09071.09072.35273.1746
C21.49571.20052.12292.12902.12901.34711.8656
O32.40591.20052.56633.10443.10442.23372.2643
H41.08552.12292.56631.78451.78453.27533.9739
H51.09072.12903.10441.78451.75602.62043.4949
H61.09072.12903.10441.78451.75602.62043.4949
O72.35271.34712.23373.27532.62042.62040.9659
H83.17461.86562.26433.97393.49493.49490.9659

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 125.988 C1 C2 O7 111.597
C2 C1 H4 109.629 C2 C1 H5 109.811
C2 C1 H6 109.811 C2 O7 H8 106.358
O3 C2 O7 122.414 H4 C1 H5 110.169
H4 C1 H6 110.169 H5 C1 H6 107.219
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.285      
2 C 0.274      
3 O -0.303      
4 H 0.121      
5 H 0.116      
6 H 0.116      
7 O -0.252      
8 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.386 -1.677 0.000 1.721
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.045 -3.668 0.000
y -3.668 -26.928 0.000
z 0.000 0.000 -22.966
Traceless
 xyz
x 4.902 -3.668 0.000
y -3.668 -5.422 0.000
z 0.000 0.000 0.521
Polar
3z2-r21.041
x2-y26.883
xy-3.668
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.015 -0.177 0.000
y -0.177 5.125 0.000
z 0.000 0.000 3.409


<r2> (average value of r2) Å2
<r2> 70.328
(<r2>)1/2 8.386