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

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-302.979051
Energy at 298.15K-302.982237
HF Energy-302.979051
Nuclear repulsion energy163.697830
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 B3PW91/6-31G(2df,p)
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' 3665 3523 99.07      
2 A' 3007 2891 45.96      
3 A' 1890 1817 184.81      
4 A' 1829 1758 90.37      
5 A' 1400 1346 332.35      
6 A' 1348 1296 13.59      
7 A' 1234 1186 8.45      
8 A' 895 860 42.51      
9 A' 690 664 13.94      
10 A' 499 480 4.76      
11 A' 285 274 36.33      
12 A" 1023 983 2.58      
13 A" 721 693 76.65      
14 A" 586 563 22.88      
15 A" 179 173 23.61      

Unscaled Zero Point Vibrational Energy (zpe) 9625.2 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 9253.6 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 B3PW91/6-31G(2df,p)
ABC
0.37154 0.15413 0.10894

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.746 -0.752 0.000
C2 0.000 0.585 0.000
O3 -0.143 -1.793 0.000
O4 -0.573 1.638 0.000
O5 1.321 0.430 0.000
H6 -1.849 -0.674 0.000
H7 1.482 -0.531 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.53121.20372.39602.38121.10502.2394
C21.53122.38281.19831.33022.23671.8556
O31.20372.38283.45802.66182.04022.0576
O42.39601.19833.45802.24622.64062.9878
O52.38121.33022.66182.24623.35630.9743
H61.10502.23672.04022.64063.35633.3339
H72.23941.85562.05762.98780.97433.3339

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 122.285 C1 C2 O5 112.458
C2 C1 O3 120.741 C2 C1 H6 115.130
C2 O5 H7 106.234 O3 C1 H6 124.129
O4 C2 O5 125.257
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.063      
2 C 0.385      
3 O -0.255      
4 O -0.316      
5 O -0.379      
6 H 0.161      
7 H 0.340      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.282 -1.847 0.000 1.868
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.966 0.175 0.000
y 0.175 -34.663 0.000
z 0.000 0.000 -25.820
Traceless
 xyz
x 5.276 0.175 0.000
y 0.175 -9.270 0.000
z 0.000 0.000 3.994
Polar
3z2-r27.988
x2-y29.697
xy0.175
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.917 -0.547 0.000
y -0.547 5.456 0.000
z 0.000 0.000 2.588


<r2> (average value of r2) Å2
<r2> 98.343
(<r2>)1/2 9.917