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

using model chemistry: mPW1PW91/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-303.019547
Energy at 298.15K-303.022770
HF Energy-303.019547
Nuclear repulsion energy163.789347
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-pVDZ
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' 3651 3498 115.73      
2 A' 3036 2909 43.56      
3 A' 1910 1830 193.02      
4 A' 1842 1765 120.08      
5 A' 1426 1367 342.30      
6 A' 1336 1280 12.47      
7 A' 1243 1191 11.29      
8 A' 909 871 42.66      
9 A' 696 667 15.17      
10 A' 507 486 5.07      
11 A' 287 275 37.35      
12 A" 1024 981 2.35      
13 A" 721 691 80.71      
14 A" 591 566 25.42      
15 A" 187 179 23.49      

Unscaled Zero Point Vibrational Energy (zpe) 9681.8 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 9278.1 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 mPW1PW91/cc-pVDZ
ABC
0.37221 0.15462 0.10924

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.748 -0.748 0.000
C2 0.000 0.583 0.000
O3 -0.140 -1.789 0.000
O4 -0.569 1.640 0.000
O5 1.320 0.425 0.000
H6 -1.856 -0.673 0.000
H7 1.468 -0.542 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52711.20582.39402.37721.11032.2262
C21.52712.37661.19981.32922.24131.8498
O31.20582.37663.45532.65172.04692.0355
O42.39401.19983.45532.24602.64632.9850
O52.37721.32922.65172.24603.36010.9777
H61.11032.24132.04692.64633.36013.3270
H72.22621.84982.03552.98500.97773.3270

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 122.324 C1 C2 O5 112.483
C2 C1 O3 120.374 C2 C1 H6 115.476
C2 O5 H7 105.607 O3 C1 H6 124.150
O4 C2 O5 125.193
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.168      
2 C 0.149      
3 O -0.191      
4 O -0.211      
5 O -0.141      
6 H 0.056      
7 H 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.327 -1.903 0.000 1.931
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.207 0.028 0.000
y 0.028 -35.002 0.000
z 0.000 0.000 -25.939
Traceless
 xyz
x 5.263 0.028 0.000
y 0.028 -9.429 0.000
z 0.000 0.000 4.165
Polar
3z2-r28.330
x2-y29.795
xy0.028
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.671 -0.657 0.000
y -0.657 5.137 0.000
z 0.000 0.000 2.146


<r2> (average value of r2) Å2
<r2> 98.274
(<r2>)1/2 9.913