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

using model chemistry: CCSD=FULL/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 CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-228.777416
Energy at 298.15K-228.782344
HF Energy-227.903617
Nuclear repulsion energy121.926746
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 CCSD=FULL/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' 3846 3646 67.67      
2 A' 3203 3037 4.26      
3 A' 3104 2943 1.86      
4 A' 1892 1793 307.03      
5 A' 1507 1428 13.12      
6 A' 1455 1379 81.81      
7 A' 1381 1309 22.08      
8 A' 1248 1183 208.22      
9 A' 1026 972 52.88      
10 A' 893 847 2.78      
11 A' 601 570 44.05      
12 A' 430 408 3.75      
13 A" 3160 2996 3.99      
14 A" 1514 1435 7.82      
15 A" 1093 1036 7.04      
16 A" 680 645 89.65      
17 A" 563 534 31.16      
18 A" 99 94 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 13846.6 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 13128.0 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 CCSD=FULL/cc-pVTZ
ABC
0.38326 0.32024 0.18024

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.984 -0.980 0.000
C2 0.000 0.141 0.000
O3 0.295 1.310 0.000
H4 1.969 -0.540 0.000
H5 0.849 -1.604 0.879
H6 0.849 -1.604 -0.879
O7 -1.270 -0.279 0.000
H8 -1.781 0.534 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 O7 H8
C11.49192.39071.07871.08621.08622.36023.1527
C21.49191.20502.08392.13052.13051.33741.8241
O32.39071.20502.49463.09303.09302.23012.2171
H41.07872.08392.49461.77721.77723.24943.9014
H51.08622.13053.09301.77721.75732.64873.5015
H61.08622.13053.09301.77721.75732.64873.5015
O72.36021.33742.23013.24942.64872.64870.9605
H83.15271.82412.21713.90143.50153.50150.9605

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 124.522 C1 C2 O7 112.953
C2 C1 H4 107.229 C2 C1 H5 110.468
C2 C1 H6 110.468 C2 O7 H8 103.873
O3 C2 O7 122.525 H4 C1 H5 110.356
H4 C1 H6 110.356 H5 C1 H6 107.980
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability