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

using model chemistry: B3LYP/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-60.420025
Energy at 298.15K-60.423062
HF Energy-60.420025
Nuclear repulsion energy86.489422
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/CEP-31G*
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' 3652 3527 83.84      
2 A' 3039 2935 49.94      
3 A' 1848 1784 200.29      
4 A' 1785 1724 136.40      
5 A' 1378 1331 356.17      
6 A' 1324 1279 26.76      
7 A' 1200 1159 2.99      
8 A' 868 838 46.93      
9 A' 667 645 15.27      
10 A' 485 468 5.72      
11 A' 273 263 34.25      
12 A" 979 945 4.62      
13 A" 660 638 90.15      
14 A" 553 534 37.01      
15 A" 168 163 29.18      

Unscaled Zero Point Vibrational Energy (zpe) 9440.0 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 9116.2 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 B3LYP/CEP-31G*
ABC
0.35735 0.14866 0.10499

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.758 -0.772 0.000
C2 0.000 0.592 0.000
O3 -0.143 -1.830 0.000
O4 -0.593 1.656 0.000
O5 1.346 0.459 0.000
H6 -1.868 -0.697 0.000
H7 1.538 -0.506 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.56051.22392.43302.43741.11212.3113
C21.56052.42651.21741.35232.26921.8897
O31.22392.42653.51452.73072.06362.1399
O42.43301.21743.51452.27802.67553.0351
O52.43741.35232.73072.27803.41490.9839
H61.11212.26922.06362.67553.41493.4108
H72.31131.88972.13993.03510.98393.4108

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 121.798 C1 C2 O5 113.414
C2 C1 O3 120.777 C2 C1 H6 115.194
C2 O5 H7 106.912 O3 C1 H6 124.029
O4 C2 O5 124.788
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.201      
2 C 0.006      
3 O -0.082      
4 O -0.069      
5 O -0.281      
6 H 0.217      
7 H 0.410      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.460 -2.017 0.000 2.069
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.064 -0.090 0.000
y -0.090 -36.576 0.000
z 0.000 0.000 -26.460
Traceless
 xyz
x 6.454 -0.090 0.000
y -0.090 -10.813 0.000
z 0.000 0.000 4.360
Polar
3z2-r28.719
x2-y211.512
xy-0.090
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.714 -0.687 0.000
y -0.687 5.636 0.000
z 0.000 0.000 2.428


<r2> (average value of r2) Å2
<r2> 81.922
(<r2>)1/2 9.051