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

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-189.554960
Energy at 298.15K-189.557563
HF Energy-189.554960
Nuclear repulsion energy70.461732
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 B3PW91/6-311G**
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' 3292 3171 0.44      
2 A' 3132 3017 2.85      
3 A' 1535 1478 34.89      
4 A' 1401 1349 14.97      
5 A' 1245 1199 21.40      
6 A' 980 944 93.91      
7 A' 540 520 0.37      
8 A" 901 868 41.41      
9 A" 683 658 4.74      

Unscaled Zero Point Vibrational Energy (zpe) 6854.4 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 6601.4 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 B3PW91/6-311G**
ABC
2.75203 0.41755 0.36254

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.452 0.000
C2 1.066 -0.218 0.000
H3 1.006 -1.302 0.000
H4 1.977 0.366 0.000
O5 -1.172 -0.171 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.25872.02181.97881.3271
C21.25871.08561.08252.2383
H32.02181.08561.93042.4542
H41.97881.08251.93043.1945
O51.32712.23832.45423.1945

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 118.988 O1 C2 H4 115.183
C2 O1 O5 119.878 H3 C2 H4 125.830
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.020      
2 C 0.012      
3 H 0.144      
4 H 0.150      
5 O -0.326      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.975 -0.377 0.000 3.992
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.403 -0.470 0.000
y -0.470 -16.303 0.000
z 0.000 0.000 -17.137
Traceless
 xyz
x 0.317 -0.470 0.000
y -0.470 0.466 0.000
z 0.000 0.000 -0.783
Polar
3z2-r2-1.567
x2-y2-0.100
xy-0.470
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.724 -0.064 0.000
y -0.064 2.325 0.000
z 0.000 0.000 1.454


<r2> (average value of r2) Å2
<r2> 37.083
(<r2>)1/2 6.090