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

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-303.092497
Energy at 298.15K-303.095602
HF Energy-303.092497
Nuclear repulsion energy162.538968
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 B3LYP/6-31+G**
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' 3668 3537 101.71      
2 A' 3036 2928 34.36      
3 A' 1848 1782 225.50      
4 A' 1799 1735 117.39      
5 A' 1369 1320 321.38      
6 A' 1349 1301 31.53      
7 A' 1209 1166 9.35      
8 A' 882 850 51.40      
9 A' 681 657 14.62      
10 A' 499 481 6.39      
11 A' 280 270 34.31      
12 A" 1003 967 3.44      
13 A" 677 653 88.73      
14 A" 566 546 41.69      
15 A" 165 159 31.07      

Unscaled Zero Point Vibrational Energy (zpe) 9515.8 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 9175.1 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 B3LYP/6-31+G**
ABC
0.36357 0.15232 0.10735

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.750 -0.760 0.000
C2 0.000 0.580 0.000
O3 -0.145 -1.810 0.000
O4 -0.589 1.634 0.000
O5 1.333 0.458 0.000
H6 -1.850 -0.685 0.000
H7 1.553 -0.495 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.53541.21232.39922.41201.10292.3181
C21.53542.39461.20721.33832.24161.8887
O31.21232.39463.47272.70622.04322.1476
O42.39921.20723.47272.25302.64033.0197
O52.41201.33832.70622.25303.38180.9772
H61.10292.24162.04322.64033.38183.4086
H72.31811.88872.14763.01970.97723.4086

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 121.584 C1 C2 O5 113.967
C2 C1 O3 120.814 C2 C1 H6 115.363
C2 O5 H7 108.299 O3 C1 H6 123.823
O4 C2 O5 124.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.269      
2 C 0.410      
3 O -0.369      
4 O -0.419      
5 O -0.427      
6 H 0.165      
7 H 0.371      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.329 -2.006 0.000 2.033
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.876 0.102 0.000
y 0.102 -37.244 0.000
z 0.000 0.000 -26.872
Traceless
 xyz
x 6.182 0.102 0.000
y 0.102 -10.870 0.000
z 0.000 0.000 4.688
Polar
3z2-r29.376
x2-y211.368
xy0.102
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.473 -0.763 0.000
y -0.763 6.315 0.000
z 0.000 0.000 2.943


<r2> (average value of r2) Å2
<r2> 100.535
(<r2>)1/2 10.027