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

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-302.487570
Energy at 298.15K-302.490764
HF Energy-301.550518
Nuclear repulsion energy162.916287
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 MP2=FULL/6-311G*
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' 3715 3519 89.15      
2 A' 3081 2918 41.49      
3 A' 1856 1758 147.79      
4 A' 1750 1657 66.31      
5 A' 1419 1344 359.87      
6 A' 1373 1301 19.02      
7 A' 1234 1169 7.90      
8 A' 904 856 51.65      
9 A' 695 658 15.07      
10 A' 510 483 4.93      
11 A' 296 280 32.77      
12 A" 1015 962 2.88      
13 A" 696 659 94.12      
14 A" 575 545 50.44      
15 A" 181 172 23.65      

Unscaled Zero Point Vibrational Energy (zpe) 9650.3 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 9139.8 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 MP2=FULL/6-311G*
ABC
0.36695 0.15273 0.10784

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.746 -0.751 0.000
C2 0.000 0.584 0.000
O3 -0.146 -1.808 0.000
O4 -0.582 1.638 0.000
O5 1.328 0.444 0.000
H6 -1.845 -0.677 0.000
H7 1.522 -0.507 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52961.21512.39492.39391.10092.2816
C21.52962.39601.20431.33552.23431.8727
O31.21512.39603.47322.69082.04092.1151
O42.39491.20433.47322.25322.63643.0050
O52.39391.33552.69082.25323.36480.9701
H61.10092.23432.04092.63643.36483.3711
H72.28161.87272.11513.00500.97013.3711

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 121.874 C1 C2 O5 113.170
C2 C1 O3 121.180 C2 C1 H6 115.316
C2 O5 H7 107.569 O3 C1 H6 123.504
O4 C2 O5 124.957
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability