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

using model chemistry: HF/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 HF/6-311G**
 hartrees
Energy at 0K-301.565580
Energy at 298.15K-301.568917
HF Energy-301.565580
Nuclear repulsion energy165.532732
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 HF/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' 4089 3715 144.78      
2 A' 3215 2921 35.93      
3 A' 2076 1886 207.13      
4 A' 2010 1826 313.84      
5 A' 1524 1384 399.41      
6 A' 1466 1332 34.27      
7 A' 1331 1209 17.07      
8 A' 973 884 54.78      
9 A' 751 682 29.97      
10 A' 558 507 8.78      
11 A' 311 282 37.38      
12 A" 1128 1025 3.24      
13 A" 679 617 7.22      
14 A" 616 559 157.74      
15 A" 175 159 35.27      

Unscaled Zero Point Vibrational Energy (zpe) 10450.1 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 9493.9 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 HF/6-311G**
ABC
0.37471 0.15744 0.11086

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.731 -0.766 0.000
C2 0.000 0.577 0.000
O3 -0.134 -1.782 0.000
O4 -0.595 1.589 0.000
O5 1.309 0.477 0.000
H6 -1.818 -0.695 0.000
H7 1.565 -0.435 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52861.17952.35812.38881.08922.3199
C21.52862.36281.17381.31272.21881.8635
O31.17952.36283.40232.68032.00532.1677
O42.35811.17383.40232.20472.59042.9598
O52.38881.31272.68032.20473.33950.9472
H61.08922.21882.00532.59043.33953.3931
H72.31991.86352.16772.95980.94723.3931

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 120.959 C1 C2 O5 114.219
C2 C1 O3 120.957 C2 C1 H6 114.857
C2 O5 H7 110.042 O3 C1 H6 124.186
O4 C2 O5 124.822
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.247      
2 C 0.468      
3 O -0.359      
4 O -0.396      
5 O -0.373      
6 H 0.123      
7 H 0.288      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.352 -2.013 0.000 2.043
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.199 0.218 0.000
y 0.218 -37.192 0.000
z 0.000 0.000 -26.067
Traceless
 xyz
x 6.430 0.218 0.000
y 0.218 -11.559 0.000
z 0.000 0.000 5.129
Polar
3z2-r210.258
x2-y211.993
xy0.218
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.191 -0.815 0.000
y -0.815 4.856 0.000
z 0.000 0.000 2.191


<r2> (average value of r2) Å2
<r2> 97.665
(<r2>)1/2 9.883