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

using model chemistry: HF/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-188.652684
Energy at 298.15K-188.655167
HF Energy-188.652684
Nuclear repulsion energy69.643012
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/aug-cc-pVQZ
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' 3363 3055 0.48      
2 A' 3236 2940 11.37      
3 A' 1907 1732 89.67      
4 A' 1584 1439 30.20      
5 A' 1355 1231 17.92      
6 A' 598 544 22.38      
7 A' 479 435 8.10      
8 A" 1309 1190 6.96      
9 A" 660 599 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 7245.0 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 6582.1 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 HF/aug-cc-pVQZ
ABC
2.51374 0.41388 0.35537

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.495 0.000
C2 1.050 -0.075 0.000
H3 1.076 -1.152 0.000
H4 1.951 0.519 0.000
O5 -1.166 -0.359 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.19461.96721.95081.4453
C21.19461.07821.07842.2346
H31.96721.07821.88642.3779
H41.95081.07841.88643.2381
O51.44532.23462.37793.2381

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 119.804 O1 C2 H4 118.161
C2 O1 O5 115.334 H3 C2 H4 122.035
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.269      
2 C -0.403      
3 H 0.563      
4 H 0.628      
5 O -0.519      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  5.619 -0.038 0.000 5.619
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.761 -0.872 0.000
y -0.872 -16.799 0.000
z 0.000 0.000 -17.169
Traceless
 xyz
x 1.223 -0.872 0.000
y -0.872 -0.334 0.000
z 0.000 0.000 -0.889
Polar
3z2-r2-1.778
x2-y21.038
xy-0.872
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.011 0.257 0.000
y 0.257 2.962 0.000
z 0.000 0.000 2.310


<r2> (average value of r2) Å2
<r2> 37.432
(<r2>)1/2 6.118