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All results from a given calculation for CHOCOOH (oxo acetic acid)

using model chemistry: MP2=FULL/6-311G**

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=FULL/6-311G**
 hartrees
Energy at 0K-302.509605
Energy at 298.15K-302.512804
HF Energy-301.559658
Nuclear repulsion energy163.075222
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=FULL/6-311G**
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' 3744 3552 113.99      
2 A' 3079 2921 42.32      
3 A' 1856 1761 150.79      
4 A' 1751 1661 63.21      
5 A' 1415 1342 330.89      
6 A' 1370 1300 17.14      
7 A' 1240 1176 3.20      
8 A' 903 857 50.29      
9 A' 695 659 15.59      
10 A' 510 483 5.09      
11 A' 291 276 33.14      
12 A" 1017 965 2.13      
13 A" 691 656 73.97      
14 A" 576 546 43.88      
15 A" 183 173 21.83      

Unscaled Zero Point Vibrational Energy (zpe) 9659.5 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 9163.0 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 MP2=FULL/6-311G**
ABC
0.36802 0.15310 0.10812

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.748 -0.750 0.000
C2 0.000 0.584 0.000
O3 -0.144 -1.803 0.000
O4 -0.578 1.641 0.000
O5 1.328 0.436 0.000
H6 -1.847 -0.672 0.000
H7 1.482 -0.523 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52961.21452.39662.39111.10102.2422
C21.52962.39181.20421.33672.23331.8502
O31.21452.39183.47112.67932.04442.0696
O42.39661.20423.47112.25542.63762.9876
O52.39111.33672.67932.25543.36250.9706
H61.10102.23332.04442.63763.36253.3322
H72.24221.85022.06962.98760.97063.3322

picture of oxo acetic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 122.030 C1 C2 O5 112.894
C2 C1 O3 120.861 C2 C1 H6 115.224
C2 O5 H7 105.520 O3 C1 H6 123.915
O4 C2 O5 125.076
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability