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

using model chemistry: wB97X-D/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 wB97X-D/6-31+G**
 hartrees
Energy at 0K-302.992407
Energy at 298.15K-302.995524
HF Energy-302.992407
Nuclear repulsion energy163.192738
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/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' 3757 3578 115.23      
2 A' 3065 2919 31.37      
3 A' 1903 1813 230.71      
4 A' 1852 1764 149.95      
5 A' 1402 1335 329.35      
6 A' 1355 1291 17.39      
7 A' 1228 1169 24.81      
8 A' 900 857 49.86      
9 A' 689 656 16.06      
10 A' 506 482 6.74      
11 A' 277 264 36.53      
12 A" 1003 955 4.16      
13 A" 683 650 94.40      
14 A" 570 543 42.25      
15 A" 160 153 31.96      

Unscaled Zero Point Vibrational Energy (zpe) 9674.6 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 9213.1 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 wB97X-D/6-31+G**
ABC
0.36679 0.15347 0.10820

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.741 -0.767 0.000
C2 0.000 0.583 0.000
O3 -0.137 -1.810 0.000
O4 -0.595 1.625 0.000
O5 1.324 0.469 0.000
H6 -1.842 -0.693 0.000
H7 1.564 -0.471 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.54051.20512.39712.40681.10332.3245
C21.54052.39711.20041.32842.24081.8859
O31.20512.39713.46582.70712.03852.1653
O42.39711.20043.46582.24042.63203.0095
O52.40681.32842.70712.24043.37220.9701
H61.10332.24082.03852.63203.37223.4135
H72.32451.88592.16533.00950.97013.4135

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 121.495 C1 C2 O5 113.847
C2 C1 O3 121.144 C2 C1 H6 114.887
C2 O5 H7 109.277 O3 C1 H6 123.969
O4 C2 O5 124.658
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.276      
2 C 0.385      
3 O -0.373      
4 O -0.415      
5 O -0.435      
6 H 0.184      
7 H 0.378      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.343 -2.054 0.000 2.082
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.490 0.180 0.000
y 0.180 -37.081 0.000
z 0.000 0.000 -26.671
Traceless
 xyz
x 6.386 0.180 0.000
y 0.180 -11.000 0.000
z 0.000 0.000 4.614
Polar
3z2-r29.229
x2-y211.591
xy0.180
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.296 -0.796 0.000
y -0.796 6.109 0.000
z 0.000 0.000 2.876


<r2> (average value of r2) Å2
<r2> 99.746
(<r2>)1/2 9.987