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

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-189.399754
Energy at 298.15K-189.402329
HF Energy-189.226676
Nuclear repulsion energy69.907876
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 B2PLYP/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' 3359 3188 0.53      
2 A' 3201 3038 4.29      
3 A' 1512 1435 24.73      
4 A' 1365 1295 75.35      
5 A' 1264 1200 21.03      
6 A' 1028 976 82.91      
7 A' 540 513 0.33      
8 A" 842 799 40.56      
9 A" 672 638 8.73      

Unscaled Zero Point Vibrational Energy (zpe) 6891.5 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 6541.4 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 B2PLYP/6-31G*
ABC
2.68272 0.41193 0.35710

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.459 0.000
C2 1.075 -0.232 0.000
H3 1.000 -1.313 0.000
H4 1.989 0.343 0.000
O5 -1.180 -0.164 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.27772.03481.99271.3344
C21.27771.08351.08052.2552
H32.03481.08351.92912.4634
H41.99271.08051.92913.2094
O51.33442.25522.46343.2094

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 118.800 O1 C2 H4 115.091
C2 O1 O5 119.369 H3 C2 H4 126.109
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.025      
2 C -0.051      
3 H 0.199      
4 H 0.199      
5 O -0.323      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.726 -0.424 0.000 3.750
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.181 -0.424 0.000
y -0.424 -16.247 0.000
z 0.000 0.000 -17.115
Traceless
 xyz
x 0.500 -0.424 0.000
y -0.424 0.401 0.000
z 0.000 0.000 -0.901
Polar
3z2-r2-1.802
x2-y20.065
xy-0.424
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.904 -0.070 0.000
y -0.070 2.243 0.000
z 0.000 0.000 1.286


<r2> (average value of r2) Å2
<r2> 37.400
(<r2>)1/2 6.116