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

using model chemistry: CCD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-31G*
 hartrees
Energy at 0K-302.260283
Energy at 298.15K-302.263460
HF Energy-301.475948
Nuclear repulsion energy162.844711
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 CCD/6-31G*
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' 3697 3499 98.88      
2 A' 3100 2935 29.90      
3 A' 1941 1837 159.49      
4 A' 1845 1746 85.42      
5 A' 1451 1374 367.23      
6 A' 1385 1311 19.30      
7 A' 1274 1206 12.04      
8 A' 917 868 51.71      
9 A' 697 660 17.84      
10 A' 520 492 6.21      
11 A' 302 286 33.18      
12 A" 1003 950 4.23      
13 A" 674 638 90.59      
14 A" 571 540 55.70      
15 A" 175 166 26.60      

Unscaled Zero Point Vibrational Energy (zpe) 9776.6 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 9253.6 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 CCD/6-31G*
ABC
0.36448 0.15336 0.10794

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.752 -0.751 0.000
C2 0.000 0.579 0.000
O3 -0.147 -1.803 0.000
O4 -0.582 1.634 0.000
O5 1.333 0.446 0.000
H6 -1.851 -0.678 0.000
H7 1.535 -0.511 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52811.21442.39062.40411.10142.2994
C21.52812.38721.20431.33912.23791.8824
O31.21442.38723.46452.69242.04262.1205
O42.39061.20433.46452.25282.63733.0132
O52.40411.33912.69242.25283.37660.9784
H61.10142.23792.04262.63733.37663.3900
H72.29941.88242.12053.01320.97843.3900

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 121.610 C1 C2 O5 113.794
C2 C1 O3 120.591 C2 C1 H6 115.706
C2 O5 H7 107.613 O3 C1 H6 123.703
O4 C2 O5 124.596
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability