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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-228.469990
Energy at 298.15K 
HF Energy-227.825529
Nuclear repulsion energy120.543070
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 MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
0.37174 0.31558 0.17625

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.082 -0.886 0.000
C2 0.000 0.153 0.000
O3 0.159 1.363 0.000
H4 2.050 -0.396 0.000
H5 0.980 -1.519 0.880
H6 0.980 -1.519 -0.880
O7 -1.237 -0.423 0.000
H8 -1.879 0.308 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 O7 H8
C11.50052.43171.08471.08861.08862.36543.1931
C21.50051.22082.12242.12822.12821.36471.8855
O32.43171.22082.58303.12333.12332.26742.2955
H41.08472.12242.58301.78341.78343.28743.9917
H51.08862.12823.12331.78341.75982.62483.5047
H61.08862.12823.12331.78341.75982.62483.5047
O72.36541.36472.26743.28742.62482.62480.9726
H83.19311.88552.29553.99173.50473.50470.9726

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 126.342 C1 C2 O7 111.199
C2 C1 H4 109.311 C2 C1 H5 109.539
C2 C1 H6 109.539 C2 O7 H8 106.335
O3 C2 O7 122.458 H4 C1 H5 110.288
H4 C1 H6 110.288 H5 C1 H6 107.855
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability