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

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-189.504626
Energy at 298.15K-189.507222
HF Energy-189.504626
Nuclear repulsion energy70.320878
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 B3PW91/6-31G**
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' 3318 3180 0.38      
2 A' 3160 3029 2.63      
3 A' 1548 1484 31.14      
4 A' 1408 1350 14.83      
5 A' 1251 1199 22.96      
6 A' 1014 972 78.46      
7 A' 536 514 0.44      
8 A" 887 851 41.52      
9 A" 684 655 5.26      

Unscaled Zero Point Vibrational Energy (zpe) 6903.2 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 6616.0 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 B3PW91/6-31G**
ABC
2.72941 0.41638 0.36127

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.454 0.000
C2 1.067 -0.224 0.000
H3 1.003 -1.308 0.000
H4 1.983 0.354 0.000
O5 -1.174 -0.167 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.26442.02771.98571.3278
C21.26441.08611.08332.2415
H32.02771.08611.93002.4576
H41.98571.08331.93003.1995
O51.32782.24152.45763.1995

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 119.044 O1 C2 H4 115.301
C2 O1 O5 119.676 H3 C2 H4 125.655
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.031      
2 C 0.023      
3 H 0.173      
4 H 0.171      
5 O -0.337      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.849 -0.412 0.000 3.871
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.068 -0.440 0.000
y -0.440 -16.039 0.000
z 0.000 0.000 -16.958
Traceless
 xyz
x 0.431 -0.440 0.000
y -0.440 0.474 0.000
z 0.000 0.000 -0.905
Polar
3z2-r2-1.810
x2-y2-0.028
xy-0.440
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.541 -0.070 0.000
y -0.070 2.273 0.000
z 0.000 0.000 1.325


<r2> (average value of r2) Å2
<r2> 37.017
(<r2>)1/2 6.084