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

using model chemistry: B3LYP/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 B3LYP/STO-3G
 hartrees
Energy at 0K-187.026945
Energy at 298.15K-187.029206
HF Energy-187.026945
Nuclear repulsion energy67.445917
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 B3LYP/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' 3566 3183 2.19      
2 A' 3351 2991 47.68      
3 A' 1543 1377 6.03      
4 A' 1427 1273 22.64      
5 A' 1267 1131 5.02      
6 A' 1115 995 7.58      
7 A' 501 447 1.17      
8 A" 659 588 17.13      
9 A" 529 472 47.60      

Unscaled Zero Point Vibrational Energy (zpe) 6979.6 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 6228.6 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 B3LYP/STO-3G
ABC
2.46435 0.38372 0.33202

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.484 0.000
C2 1.112 -0.281 0.000
H3 1.035 -1.378 0.000
H4 2.062 0.267 0.000
O5 -1.221 -0.134 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.34962.13062.07331.3683
C21.34961.09941.09752.3371
H32.13061.09941.93962.5766
H42.07331.09751.93963.3073
O51.36832.33712.57663.3073

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 120.574 O1 C2 H4 115.440
C2 O1 O5 118.608 H3 C2 H4 123.985
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.004      
2 C -0.063      
3 H 0.098      
4 H 0.099      
5 O -0.131      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.801 -0.368 0.000 1.838
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.129 -0.044 0.000
y -0.044 -14.926 0.000
z 0.000 0.000 -15.217
Traceless
 xyz
x -0.057 -0.044 0.000
y -0.044 0.247 0.000
z 0.000 0.000 -0.190
Polar
3z2-r2-0.379
x2-y2-0.203
xy-0.044
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.801 -0.139 0.000
y -0.139 1.143 0.000
z 0.000 0.000 0.466


<r2> (average value of r2) Å2
<r2> 38.550
(<r2>)1/2 6.209