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

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-301.556346
Energy at 298.15K-301.559687
HF Energy-301.556346
Nuclear repulsion energy165.519341
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 HF/6-311G*
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' 4099 3707 115.21      
2 A' 3244 2934 41.47      
3 A' 2078 1880 200.71      
4 A' 2011 1819 320.38      
5 A' 1533 1387 424.16      
6 A' 1479 1338 42.13      
7 A' 1329 1202 17.26      
8 A' 975 881 54.68      
9 A' 750 678 28.89      
10 A' 558 504 8.47      
11 A' 313 283 37.12      
12 A" 1125 1017 3.37      
13 A" 685 620 24.13      
14 A" 628 568 165.54      
15 A" 177 160 35.99      

Unscaled Zero Point Vibrational Energy (zpe) 10492.0 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 9488.9 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 HF/6-311G*
ABC
0.37468 0.15739 0.11083

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.732 -0.764 0.000
C2 0.000 0.577 0.000
O3 -0.136 -1.783 0.000
O4 -0.593 1.590 0.000
O5 1.309 0.474 0.000
H6 -1.818 -0.697 0.000
H7 1.577 -0.433 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52821.17982.35822.38661.08812.3323
C21.52822.36391.17361.31272.22021.8726
O31.17982.36393.40342.67932.00132.1810
O42.35821.17363.40342.20532.59452.9665
O52.38661.31272.67932.20533.33850.9452
H61.08812.22022.00132.59453.33853.4049
H72.33231.87262.18102.96650.94523.4049

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 121.025 C1 C2 O5 114.080
C2 C1 O3 121.072 C2 C1 H6 115.089
C2 O5 H7 111.014 O3 C1 H6 123.839
O4 C2 O5 124.895
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.107      
2 C 0.543      
3 O -0.362      
4 O -0.397      
5 O -0.593      
6 H 0.235      
7 H 0.467      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.348 -2.101 0.000 2.130
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.205 0.012 0.000
y 0.012 -37.303 0.000
z 0.000 0.000 -26.148
Traceless
 xyz
x 6.521 0.012 0.000
y 0.012 -11.627 0.000
z 0.000 0.000 5.106
Polar
3z2-r210.212
x2-y212.099
xy0.012
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.152 -0.829 0.000
y -0.829 4.816 0.000
z 0.000 0.000 2.138


<r2> (average value of r2) Å2
<r2> 97.744
(<r2>)1/2 9.887