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

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-301.288915
Energy at 298.15K-301.292206
HF Energy-301.288915
Nuclear repulsion energy162.159022
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 wB97X-D/3-21G*
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' 3486 3304 74.69      
2 A' 3112 2950 33.45      
3 A' 1874 1776 122.16      
4 A' 1756 1664 50.12      
5 A' 1380 1308 93.29      
6 A' 1360 1289 302.93      
7 A' 1213 1150 1.40      
8 A' 863 818 48.98      
9 A' 696 660 12.74      
10 A' 505 479 3.06      
11 A' 301 286 39.99      
12 A" 1062 1007 7.97      
13 A" 726 688 138.26      
14 A" 608 576 28.84      
15 A" 232 220 21.54      

Unscaled Zero Point Vibrational Energy (zpe) 9587.0 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 9086.6 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 wB97X-D/3-21G*
ABC
0.36568 0.15239 0.10756

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.759 -0.739 0.000
C2 0.000 0.593 0.000
O3 -0.165 -1.806 0.000
O4 -0.561 1.668 0.000
O5 1.332 0.395 0.000
H6 -1.848 -0.612 0.000
H7 1.555 -0.568 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.53391.22132.41552.37881.09672.3201
C21.53392.40541.21201.34622.20681.9404
O31.22132.40543.49672.66202.06432.1191
O42.41551.21203.49672.28042.61843.0778
O52.37881.34622.66202.28043.33570.9886
H61.09672.20682.06432.61843.33573.4033
H72.32011.94042.11913.07780.98863.4033

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 122.774 C1 C2 O5 111.204
C2 C1 O3 121.212 C2 C1 H6 112.990
C2 O5 H7 111.501 O3 C1 H6 125.798
O4 C2 O5 126.021
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.176      
2 C 0.628      
3 O -0.418      
4 O -0.459      
5 O -0.579      
6 H 0.254      
7 H 0.399      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.681 -2.197 0.000 2.300
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.641 -0.592 0.000
y -0.592 -35.916 0.000
z 0.000 0.000 -26.083
Traceless
 xyz
x 5.358 -0.592 0.000
y -0.592 -10.054 0.000
z 0.000 0.000 4.696
Polar
3z2-r29.392
x2-y210.275
xy-0.592
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.068 -0.850 0.000
y -0.850 4.686 0.000
z 0.000 0.000 1.468


<r2> (average value of r2) Å2
<r2> 99.837
(<r2>)1/2 9.992