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All results from a given calculation for H2COO (Dioxymethyl radical)

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-186.057417
Energy at 298.15K-186.059691
HF Energy-186.057417
Nuclear repulsion energy68.090425
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/STO-3G
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' 3760 3070 3.11      
2 A' 3569 2914 82.01      
3 A' 1875 1531 4.24      
4 A' 1625 1326 0.99      
5 A' 1358 1109 13.88      
6 A' 601 491 50.30      
7 A' 444 362 0.40      
8 A" 1132 924 21.17      
9 A" 630 514 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 7496.1 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 6120.6 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 HF/STO-3G
ABC
2.64881 0.38463 0.33586

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.469 0.000
C2 1.099 -0.131 0.000
H3 1.146 -1.224 0.000
H4 2.023 0.454 0.000
O5 -1.220 -0.275 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.25202.04472.02341.4294
C21.25201.09461.09392.3238
H32.04471.09461.89382.5497
H42.02341.09391.89383.3247
O51.42942.32382.54973.3247

picture of Dioxymethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 121.095 O1 C2 H4 119.057
C2 O1 O5 119.998 H3 C2 H4 119.848
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.062      
2 C 0.094      
3 H 0.111      
4 H 0.105      
5 O -0.249      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.650 -0.212 0.000 3.656
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.876 -0.376 0.000
y -0.376 -14.953 0.000
z 0.000 0.000 -15.003
Traceless
 xyz
x 0.102 -0.376 0.000
y -0.376 -0.013 0.000
z 0.000 0.000 -0.089
Polar
3z2-r2-0.178
x2-y20.076
xy-0.376
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.828 0.073 0.000
y 0.073 1.105 0.000
z 0.000 0.000 0.396


<r2> (average value of r2) Å2
<r2> 38.076
(<r2>)1/2 6.171