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

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-303.058433
Energy at 298.15K-303.061637
HF Energy-303.058433
Nuclear repulsion energy164.245188
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 B1B95/6-311G**
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' 3714 3566 111.92      
2 A' 3030 2909 46.14      
3 A' 1906 1830 210.26      
4 A' 1842 1769 121.51      
5 A' 1407 1351 351.15      
6 A' 1348 1295 16.46      
7 A' 1235 1186 8.44      
8 A' 902 866 45.07      
9 A' 696 669 17.11      
10 A' 507 487 5.34      
11 A' 295 283 36.11      
12 A" 1018 977 2.88      
13 A" 701 673 85.13      
14 A" 582 559 35.27      
15 A" 179 172 25.73      

Unscaled Zero Point Vibrational Energy (zpe) 9681.3 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 9295.0 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 B1B95/6-311G**
ABC
0.37284 0.15545 0.10971

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.745 -0.750 0.000
C2 0.000 0.583 0.000
O3 -0.140 -1.786 0.000
O4 -0.574 1.629 0.000
O5 1.317 0.433 0.000
H6 -1.843 -0.677 0.000
H7 1.490 -0.522 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52731.19932.38532.37761.10052.2465
C21.52732.37281.19321.32592.23301.8549
O31.19932.37283.44222.65422.03212.0621
O42.38531.19323.44222.23812.63242.9812
O52.37761.32592.65422.23813.34990.9703
H61.10052.23302.03212.63243.34993.3366
H72.24651.85492.06212.98120.97033.3366

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 122.033 C1 C2 O5 112.693
C2 C1 O3 120.495 C2 C1 H6 115.406
C2 O5 H7 106.742 O3 C1 H6 124.099
O4 C2 O5 125.274
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.139      
2 C 0.311      
3 O -0.271      
4 O -0.299      
5 O -0.281      
6 H 0.133      
7 H 0.267      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.352 -1.943 0.000 1.975
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.379 0.037 0.000
y 0.037 -35.615 0.000
z 0.000 0.000 -26.094
Traceless
 xyz
x 5.475 0.037 0.000
y 0.037 -9.878 0.000
z 0.000 0.000 4.403
Polar
3z2-r28.806
x2-y210.236
xy0.037
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.746 -0.712 0.000
y -0.712 5.266 0.000
z 0.000 0.000 2.290


<r2> (average value of r2) Å2
<r2> 98.141
(<r2>)1/2 9.907