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

using model chemistry: mPW1PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-303.110966
Energy at 298.15K-303.114152
HF Energy-303.110966
Nuclear repulsion energy164.087450
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 mPW1PW91/cc-pVTZ
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' 3699 3549 104.80      
2 A' 3024 2901 41.45      
3 A' 1889 1812 215.22      
4 A' 1834 1760 110.38      
5 A' 1402 1345 334.65      
6 A' 1353 1298 15.70      
7 A' 1235 1185 11.66      
8 A' 901 864 46.85      
9 A' 695 666 15.22      
10 A' 506 485 5.47      
11 A' 281 269 36.63      
12 A" 1029 987 3.23      
13 A" 705 677 79.83      
14 A" 586 562 25.65      
15 A" 172 165 26.60      

Unscaled Zero Point Vibrational Energy (zpe) 9656.1 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 9262.2 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 mPW1PW91/cc-pVTZ
ABC
0.37198 0.15499 0.10941

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.743 -0.753 0.000
C2 0.000 0.581 0.000
O3 -0.142 -1.791 0.000
O4 -0.578 1.627 0.000
O5 1.319 0.441 0.000
H6 -1.841 -0.678 0.000
H7 1.502 -0.513 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52691.19942.38522.38221.10052.2578
C21.52692.37621.19451.32652.23011.8585
O31.19942.37623.44512.66692.03102.0822
O42.38521.19453.44512.23732.62782.9841
O52.38221.32652.66692.23733.35180.9709
H61.10052.23012.03102.62783.35183.3470
H72.25781.85852.08222.98410.97093.3470

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 121.959 C1 C2 O5 113.018
C2 C1 O3 120.817 C2 C1 H6 115.199
C2 O5 H7 106.968 O3 C1 H6 123.984
O4 C2 O5 125.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.143      
2 C 0.233      
3 O -0.235      
4 O -0.258      
5 O -0.191      
6 H 0.090      
7 H 0.218      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.270 -1.886 0.000 1.906
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.268 0.209 0.000
y 0.209 -35.599 0.000
z 0.000 0.000 -26.238
Traceless
 xyz
x 5.651 0.209 0.000
y 0.209 -9.846 0.000
z 0.000 0.000 4.195
Polar
3z2-r28.390
x2-y210.331
xy0.209
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.121 -0.606 0.000
y -0.606 5.744 0.000
z 0.000 0.000 2.777


<r2> (average value of r2) Å2
<r2> 98.366
(<r2>)1/2 9.918