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

using model chemistry: HSEh1PBE/aug-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 HSEh1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-302.897997
Energy at 298.15K-302.901174
HF Energy-302.897997
Nuclear repulsion energy163.982608
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 HSEh1PBE/aug-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' 3681 3540 108.73      
2 A' 3018 2903 36.75      
3 A' 1876 1804 239.85      
4 A' 1828 1758 109.86      
5 A' 1394 1341 322.62      
6 A' 1349 1298 16.65      
7 A' 1231 1184 11.23      
8 A' 899 864 47.24      
9 A' 692 666 14.73      
10 A' 505 486 5.90      
11 A' 279 269 35.27      
12 A" 1028 989 3.92      
13 A" 704 677 79.49      
14 A" 585 562 24.07      
15 A" 171 164 28.36      

Unscaled Zero Point Vibrational Energy (zpe) 9619.6 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 9252.1 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 HSEh1PBE/aug-cc-pVTZ
ABC
0.37132 0.15481 0.10926

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.743 -0.754 0.000
C2 0.000 0.581 0.000
O3 -0.141 -1.792 0.000
O4 -0.580 1.626 0.000
O5 1.319 0.444 0.000
H6 -1.842 -0.679 0.000
H7 1.512 -0.508 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52761.19972.38582.38521.10162.2682
C21.52762.37711.19541.32652.23131.8635
O31.19972.37713.44632.67132.03262.0932
O42.38581.19543.44632.23702.62772.9887
O52.38521.32652.67132.23703.35490.9721
H61.10162.23132.03262.62773.35493.3582
H72.26821.86352.09322.98870.97213.3582

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 121.884 C1 C2 O5 113.194
C2 C1 O3 120.815 C2 C1 H6 115.174
C2 O5 H7 107.328 O3 C1 H6 124.011
O4 C2 O5 124.922
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.099      
2 C 0.550      
3 O -0.547      
4 O -0.486      
5 O -0.288      
6 H 0.446      
7 H 0.226      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.284 -1.896 0.000 1.918
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.622 0.340 0.000
y 0.340 -36.132 0.000
z 0.000 0.000 -26.593
Traceless
 xyz
x 5.741 0.340 0.000
y 0.340 -10.025 0.000
z 0.000 0.000 4.284
Polar
3z2-r28.568
x2-y210.511
xy0.340
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.727 -0.576 0.000
y -0.576 6.407 0.000
z 0.000 0.000 3.442


<r2> (average value of r2) Å2
<r2> 98.743
(<r2>)1/2 9.937