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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-303.039922
Energy at 298.15K-303.043096
HF Energy-303.039922
Nuclear repulsion energy163.648358
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
4/u)
Dep P Dep U
1 A' 3677 3541 105.34      
2 A' 3007 2896 48.36      
3 A' 1880 1811 205.00      
4 A' 1819 1752 112.45      
5 A' 1391 1339 349.43      
6 A' 1343 1293 14.58      
7 A' 1221 1176 5.20      
8 A' 890 857 46.51      
9 A' 693 667 16.22      
10 A' 502 484 5.54      
11 A' 284 274 36.69      
12 A" 1013 976 2.79      
13 A" 701 675 84.87      
14 A" 578 557 33.43      
15 A" 177 170 25.71      

Unscaled Zero Point Vibrational Energy (zpe) 9587.6 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 9233.8 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 B3PW91/6-311G**
ABC
0.37011 0.15418 0.10884

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 -0.746 -0.754 0.000
C2 0.000 0.584 0.000
O3 -0.142 -1.794 0.000
O4 -0.577 1.633 0.000
O5 1.323 0.438 0.000
H6 -1.847 -0.677 0.000
H7 1.499 -0.519 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.53221.20292.39312.38761.10392.2570
C21.53222.38291.19721.33092.23721.8613
O31.20292.38293.45502.67002.03832.0780
O42.39311.19723.45502.24482.63672.9905
O52.38761.33092.67002.24483.36060.9733
H61.10392.23722.03832.63673.36063.3498
H72.25701.86132.07802.99050.97333.3498

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 122.031 C1 C2 O5 112.819
C2 C1 O3 120.730 C2 C1 H6 115.168
C2 O5 H7 106.732 O3 C1 H6 124.102
O4 C2 O5 125.150
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 0.143      
2 C 0.314      
3 O -0.273      
4 O -0.301      
5 O -0.279      
6 H 0.131      
7 H 0.265      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.326 -1.928 0.000 1.956
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.402 0.035 0.000
y 0.035 -35.743 0.000
z 0.000 0.000 -26.149
Traceless
 xyz
x 5.544 0.035 0.000
y 0.035 -9.968 0.000
z 0.000 0.000 4.423
Polar
3z2-r28.846
x2-y210.341
xy0.035
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.812 -0.710 0.000
y -0.710 5.336 0.000
z 0.000 0.000 2.309


<r2> (average value of r2) Å2
<r2> 98.815
(<r2>)1/2 9.941