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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-301.873766
Energy at 298.15K-301.876815
HF Energy-301.315586
Nuclear repulsion energy159.796340
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' 3626 3479 71.58      
2 A' 3096 2971 23.35      
3 A' 1796 1723 99.40      
4 A' 1693 1624 41.25      
5 A' 1376 1320 8.86      
6 A' 1325 1271 345.65      
7 A' 1227 1178 5.46      
8 A' 863 829 66.15      
9 A' 671 644 14.46      
10 A' 515 494 6.23      
11 A' 290 278 32.61      
12 A" 954 915 6.46      
13 A" 603 579 105.75      
14 A" 528 506 107.66      
15 A" 171 164 27.38      

Unscaled Zero Point Vibrational Energy (zpe) 9367.1 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 8987.7 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
0.34723 0.14897 0.10424

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 -0.785 -0.739 0.000
C2 0.000 0.571 0.000
O3 -0.188 -1.833 0.000
O4 -0.564 1.667 0.000
O5 1.371 0.436 0.000
H6 -1.880 -0.647 0.000
H7 1.644 -0.508 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52691.24612.41542.45471.09922.4399
C21.52692.41111.23241.37752.24061.9664
O31.24612.41113.51952.75242.06572.2613
O42.41541.23243.51952.29372.66213.0993
O52.45471.37752.75242.29373.42670.9820
H61.09922.24062.06572.66213.42673.5271
H72.43991.96642.26133.09930.98203.5271

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 121.813 C1 C2 O5 115.285
C2 C1 O3 120.468 C2 C1 H6 116.174
C2 O5 H7 111.803 O3 C1 H6 123.358
O4 C2 O5 122.903
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability