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

using model chemistry: CCD/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-302.379410
Energy at 298.15K-302.382574
HF Energy-301.530042
Nuclear repulsion energy162.384136
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/aug-cc-pVDZ
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' 3754 3621 102.26      
2 A' 3076 2967 27.68      
3 A' 1884 1817 190.68      
4 A' 1811 1747 119.34      
5 A' 1417 1367 322.44      
6 A' 1357 1309 21.62      
7 A' 1249 1205 6.63      
8 A' 901 869 53.17      
9 A' 688 663 16.76      
10 A' 514 496 6.99      
11 A' 282 272 31.41      
12 A" 1020 984 4.03      
13 A" 660 636 60.42      
14 A" 583 562 50.80      
15 A" 169 163 28.02      

Unscaled Zero Point Vibrational Energy (zpe) 9682.7 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 9339.0 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 CCD/aug-cc-pVDZ
ABC
0.36232 0.15198 0.10707

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.752 -0.760 0.000
C2 0.000 0.580 0.000
O3 -0.149 -1.813 0.000
O4 -0.586 1.633 0.000
O5 1.338 0.461 0.000
H6 -1.858 -0.682 0.000
H7 1.547 -0.488 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.53681.21322.39932.42001.10862.3152
C21.53682.39781.20531.34282.24591.8804
O31.21322.39783.47402.71672.04912.1523
O42.39931.20533.47402.25282.64163.0088
O52.42001.34282.71672.25283.39350.9721
H61.10862.24592.04912.64163.39353.4105
H72.31521.88042.15233.00880.97213.4105

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 121.615 C1 C2 O5 114.195
C2 C1 O3 120.913 C2 C1 H6 115.243
C2 O5 H7 107.558 O3 C1 H6 123.844
O4 C2 O5 124.190
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability