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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-302.142824
Energy at 298.15K-302.146080
HF Energy-301.478880
Nuclear repulsion energy164.102565
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 CID/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3836 3543 123.54      
2 A' 3204 2959 28.57      
3 A' 2011 1858 186.68      
4 A' 1932 1785 155.48      
5 A' 1495 1381 379.93      
6 A' 1428 1319 23.06      
7 A' 1306 1207 23.97      
8 A' 951 878 52.48      
9 A' 719 664 21.26      
10 A' 537 496 7.00      
11 A' 309 285 36.15      
12 A" 1060 979 3.92      
13 A" 689 636 88.38      
14 A" 600 554 69.66      
15 A" 176 162 31.03      

Unscaled Zero Point Vibrational Energy (zpe) 10125.4 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 9352.8 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 CID/6-31G*
ABC
0.36966 0.15563 0.10952

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.744 -0.752 0.000
C2 0.000 0.577 0.000
O3 -0.139 -1.790 0.000
O4 -0.585 1.618 0.000
O5 1.320 0.450 0.000
H6 -1.835 -0.682 0.000
H7 1.538 -0.494 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52341.20152.37502.38891.09312.2970
C21.52342.37121.19401.32632.22561.8742
O31.20152.37123.43682.67332.02582.1197
O42.37501.19403.43682.23512.61742.9947
O52.38891.32632.67332.23513.35220.9685
H61.09312.22562.02582.61743.35223.3785
H72.29701.87422.11972.99470.96853.3785

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 121.387 C1 C2 O5 113.740
C2 C1 O3 120.507 C2 C1 H6 115.581
C2 O5 H7 108.513 O3 C1 H6 123.912
O4 C2 O5 124.873
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability