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 energy | 120.543070 |
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**
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 |
| C1 | | 1.5005 | 2.4317 | 1.0847 | 1.0886 | 1.0886 | 2.3654 | 3.1931 |
C2 | 1.5005 | | 1.2208 | 2.1224 | 2.1282 | 2.1282 | 1.3647 | 1.8855 | O3 | 2.4317 | 1.2208 | | 2.5830 | 3.1233 | 3.1233 | 2.2674 | 2.2955 | H4 | 1.0847 | 2.1224 | 2.5830 | | 1.7834 | 1.7834 | 3.2874 | 3.9917 | H5 | 1.0886 | 2.1282 | 3.1233 | 1.7834 | | 1.7598 | 2.6248 | 3.5047 | H6 | 1.0886 | 2.1282 | 3.1233 | 1.7834 | 1.7598 | | 2.6248 | 3.5047 | O7 | 2.3654 | 1.3647 | 2.2674 | 3.2874 | 2.6248 | 2.6248 | | 0.9726 | H8 | 3.1931 | 1.8855 | 2.2955 | 3.9917 | 3.5047 | 3.5047 | 0.9726 | |
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