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

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-302.979753
Energy at 298.15K-302.982956
HF Energy-302.979753
Nuclear repulsion energy163.420977
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 B3PW91/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' 3610 3484 112.50      
2 A' 3012 2907 46.83      
3 A' 1888 1822 188.81      
4 A' 1819 1756 110.31      
5 A' 1410 1361 340.17      
6 A' 1328 1281 11.52      
7 A' 1230 1186 8.77      
8 A' 898 867 42.64      
9 A' 691 667 14.46      
10 A' 502 485 4.91      
11 A' 284 274 37.15      
12 A" 1015 979 2.29      
13 A" 722 696 80.33      
14 A" 585 565 23.62      
15 A" 186 180 22.95      

Unscaled Zero Point Vibrational Energy (zpe) 9589.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 9253.6 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 B3PW91/cc-pVDZ
ABC
0.37070 0.15393 0.10877

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.751 -0.748 0.000
C2 0.000 0.585 0.000
O3 -0.143 -1.792 0.000
O4 -0.568 1.645 0.000
O5 1.323 0.422 0.000
H6 -1.861 -0.672 0.000
H7 1.469 -0.547 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52971.20882.39982.38141.11222.2290
C21.52972.38161.20261.33302.24571.8545
O31.20882.38163.46362.65612.05072.0368
O42.39981.20263.46362.25172.65372.9923
O52.38141.33302.65612.25173.36680.9805
H61.11222.24572.05072.65373.36683.3320
H72.22901.85452.03682.99230.98053.3320

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 122.424 C1 C2 O5 112.406
C2 C1 O3 120.391 C2 C1 H6 115.522
C2 O5 H7 105.551 O3 C1 H6 124.087
O4 C2 O5 125.170
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.161      
2 C 0.141      
3 O -0.186      
4 O -0.205      
5 O -0.137      
6 H 0.056      
7 H 0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.321 -1.894 0.000 1.921
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.217 0.005 0.000
y 0.005 -34.956 0.000
z 0.000 0.000 -25.948
Traceless
 xyz
x 5.235 0.005 0.000
y 0.005 -9.374 0.000
z 0.000 0.000 4.139
Polar
3z2-r28.277
x2-y29.739
xy0.005
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.733 -0.649 0.000
y -0.649 5.188 0.000
z 0.000 0.000 2.153


<r2> (average value of r2) Å2
<r2> 98.618
(<r2>)1/2 9.931