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

using model chemistry: M06-2X/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 M06-2X/6-31G**
 hartrees
Energy at 0K-302.955818
Energy at 298.15K-302.959023
HF Energy-302.955818
Nuclear repulsion energy163.549195
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 M06-2X/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' 3758 3572 115.09      
2 A' 3090 2937 35.93      
3 A' 1953 1856 198.28      
4 A' 1885 1792 126.12      
5 A' 1431 1360 364.04      
6 A' 1352 1285 18.40      
7 A' 1258 1196 21.92      
8 A' 911 866 45.73      
9 A' 698 664 18.39      
10 A' 513 488 5.17      
11 A' 308 293 34.63      
12 A" 1011 961 3.43      
13 A" 674 641 84.36      
14 A" 574 545 50.18      
15 A" 184 175 27.19      

Unscaled Zero Point Vibrational Energy (zpe) 9801.0 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 9314.8 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 M06-2X/6-31G**
ABC
0.36797 0.15451 0.10882

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.748 -0.757 0.000
C2 0.000 0.582 0.000
O3 -0.135 -1.794 0.000
O4 -0.586 1.627 0.000
O5 1.323 0.446 0.000
H6 -1.848 -0.685 0.000
H7 1.526 -0.506 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.53331.20462.38922.39441.10212.2872
C21.53332.37971.19841.32962.24001.8737
O31.20462.37973.45072.67262.04032.1018
O42.38921.19843.45072.24482.63343.0016
O52.39441.32962.67262.24483.36580.9732
H61.10212.24002.04032.63343.36583.3779
H72.28721.87372.10183.00160.97323.3779

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 121.517 C1 C2 O5 113.321
C2 C1 O3 120.247 C2 C1 H6 115.441
C2 O5 H7 107.907 O3 C1 H6 124.311
O4 C2 O5 125.163
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.234      
2 C 0.569      
3 O -0.393      
4 O -0.428      
5 O -0.509      
6 H 0.158      
7 H 0.369      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.331 -2.005 0.000 2.033
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.072 -0.047 0.000
y -0.047 -35.512 0.000
z 0.000 0.000 -26.108
Traceless
 xyz
x 5.738 -0.047 0.000
y -0.047 -9.922 0.000
z 0.000 0.000 4.185
Polar
3z2-r28.369
x2-y210.440
xy-0.047
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.565 -0.758 0.000
y -0.758 5.063 0.000
z 0.000 0.000 2.109


<r2> (average value of r2) Å2
<r2> 98.745
(<r2>)1/2 9.937