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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-303.031132
Energy at 298.15K-303.034302
HF Energy-303.031132
Nuclear repulsion energy163.557203
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 B3PW91/6-311G*
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' 3655 3519 73.12      
2 A' 3016 2903 54.58      
3 A' 1882 1812 198.39      
4 A' 1821 1753 117.31      
5 A' 1400 1348 373.02      
6 A' 1355 1304 17.97      
7 A' 1219 1174 5.02      
8 A' 891 857 47.16      
9 A' 693 667 16.12      
10 A' 502 484 5.35      
11 A' 288 278 35.80      
12 A" 1010 972 2.90      
13 A" 709 682 100.94      
14 A" 578 556 37.11      
15 A" 176 170 26.28      

Unscaled Zero Point Vibrational Energy (zpe) 9597.4 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 9239.4 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 B3PW91/6-311G*
ABC
0.36958 0.15393 0.10867

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.745 -0.754 0.000
C2 0.000 0.585 0.000
O3 -0.145 -1.797 0.000
O4 -0.578 1.633 0.000
O5 1.323 0.440 0.000
H6 -1.847 -0.681 0.000
H7 1.518 -0.513 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.53261.20282.39292.38831.10382.2763
C21.53262.38601.19671.33112.23931.8740
O31.20282.38603.45672.67532.03442.1007
O42.39291.19673.45672.24462.63943.0002
O52.38831.33112.67532.24463.36230.9730
H61.10382.23932.03442.63943.36233.3691
H72.27631.87402.10073.00020.97303.3691

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 122.024 C1 C2 O5 112.832
C2 C1 O3 120.974 C2 C1 H6 115.323
C2 O5 H7 107.830 O3 C1 H6 123.703
O4 C2 O5 125.145
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.018      
2 C 0.390      
3 O -0.273      
4 O -0.302      
5 O -0.478      
6 H 0.221      
7 H 0.423      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.308 -2.009 0.000 2.032
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.399 -0.182 0.000
y -0.182 -35.858 0.000
z 0.000 0.000 -26.240
Traceless
 xyz
x 5.650 -0.182 0.000
y -0.182 -10.038 0.000
z 0.000 0.000 4.389
Polar
3z2-r28.777
x2-y210.459
xy-0.182
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.781 -0.719 0.000
y -0.719 5.302 0.000
z 0.000 0.000 2.258


<r2> (average value of r2) Å2
<r2> 99.006
(<r2>)1/2 9.950