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

using model chemistry: MP2=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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-302.672274
Energy at 298.15K-302.675505
HF Energy-301.597587
Nuclear repulsion energy163.788187
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/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' 3694 3507 119.93      
2 A' 3096 2940 32.15      
3 A' 1850 1757 163.41      
4 A' 1752 1664 63.61      
5 A' 1409 1338 302.53      
6 A' 1376 1306 25.82      
7 A' 1240 1177 13.20      
8 A' 910 864 52.90      
9 A' 696 661 13.39      
10 A' 512 486 4.79      
11 A' 289 274 34.86      
12 A" 1042 990 3.03      
13 A" 715 679 76.58      
14 A" 597 567 26.78      
15 A" 181 172 24.42      

Unscaled Zero Point Vibrational Energy (zpe) 9679.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 9190.0 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/cc-pVTZ
ABC
0.37132 0.15469 0.10920

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.746 -0.741 0.000
C2 0.000 0.579 0.000
O3 -0.147 -1.794 0.000
O4 -0.572 1.636 0.000
O5 1.323 0.429 0.000
H6 -1.834 -0.664 0.000
H7 1.482 -0.530 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.51611.21162.38282.37691.09072.2376
C21.51612.37731.20181.33142.21561.8508
O31.21162.37733.45582.66482.03072.0610
O42.38281.20183.45582.24672.62312.9850
O52.37691.33142.66482.24673.34090.9725
H61.09072.21562.03072.62313.34093.3184
H72.23761.85082.06102.98500.97253.3184

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 122.078 C1 C2 O5 113.020
C2 C1 O3 120.869 C2 C1 H6 115.441
C2 O5 H7 105.854 O3 C1 H6 123.689
O4 C2 O5 124.902
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability