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

using model chemistry: CCD/TZVP

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/TZVP
 hartrees
Energy at 0K-302.440986
Energy at 298.15K-302.444115
HF Energy-301.588448
Nuclear repulsion energy163.440232
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/TZVP
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' 3808 3610 103.60      
2 A' 3097 2936 29.93      
3 A' 1920 1820 191.74      
4 A' 1841 1746 106.98      
5 A' 1417 1343 285.85      
6 A' 1402 1329 71.17      
7 A' 1247 1182 3.50      
8 A' 905 858 53.05      
9 A' 700 663 17.45      
10 A' 521 494 6.62      
11 A' 286 272 31.45      
12 A" 1004 952 2.77      
13 A" 639 605 49.08      
14 A" 552 523 88.21      
15 A" 159 151 26.74      

Unscaled Zero Point Vibrational Energy (zpe) 9749.1 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 9242.2 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/TZVP
ABC
0.36719 0.15371 0.10835

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.748 -0.758 0.000
C2 0.000 0.579 0.000
O3 -0.149 -1.802 0.000
O4 -0.582 1.623 0.000
O5 1.329 0.460 0.000
H6 -1.842 -0.682 0.000
H7 1.537 -0.485 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.53221.20322.38662.40771.09662.3012
C21.53222.38591.19451.33482.23191.8698
O31.20322.38593.45182.70222.02952.1399
O42.38661.19453.45182.23692.62642.9886
O52.40771.33482.70222.23693.37010.9674
H61.09662.23192.02952.62643.37013.3846
H72.30121.86982.13992.98860.96743.3846

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 121.664 C1 C2 O5 114.066
C2 C1 O3 120.973 C2 C1 H6 115.205
C2 O5 H7 107.552 O3 C1 H6 123.823
O4 C2 O5 124.270
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability