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

using model chemistry: MP3=FULL/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 MP3=FULL/6-31G*
 hartrees
Energy at 0K-302.271721
Energy at 298.15K-302.274928
HF Energy-301.476821
Nuclear repulsion energy163.281492
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 MP3=FULL/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' 3712 3483 103.48      
2 A' 3128 2935 27.30      
3 A' 1958 1837 171.05      
4 A' 1870 1754 89.24      
5 A' 1461 1371 370.80      
6 A' 1394 1308 20.41      
7 A' 1282 1203 14.25      
8 A' 926 868 51.25      
9 A' 703 660 18.19      
10 A' 524 492 6.39      
11 A' 304 285 34.19      
12 A" 1014 952 4.43      
13 A" 684 642 94.31      
14 A" 580 545 52.59      
15 A" 179 168 27.31      

Unscaled Zero Point Vibrational Energy (zpe) 9859.1 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 9250.8 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 MP3=FULL/6-31G*
ABC
0.36607 0.15439 0.10859

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.745 -0.756 0.000
C2 0.000 0.582 0.000
O3 -0.143 -1.804 0.000
O4 -0.587 1.630 0.000
O5 1.326 0.452 0.000
H6 -1.844 -0.677 0.000
H7 1.542 -0.498 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.53191.20862.39122.39791.10162.3012
C21.53192.39051.20071.33262.23261.8823
O31.20862.39053.46232.69192.04102.1311
O42.39121.20073.46232.24672.62663.0096
O52.39791.33262.69192.24673.36500.9741
H61.10162.23262.04102.62663.36503.3901
H72.30121.88232.13113.00960.97413.3901

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 121.628 C1 C2 O5 113.494
C2 C1 O3 120.992 C2 C1 H6 114.958
C2 O5 H7 108.380 O3 C1 H6 124.050
O4 C2 O5 124.878
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability