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

using model chemistry: LSDA/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 LSDA/6-31G**
 hartrees
Energy at 0K-188.631084
Energy at 298.15K-188.633647
HF Energy-188.631084
Nuclear repulsion energy70.505455
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 LSDA/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' 3243 3182 1.11      
2 A' 3077 3020 3.65      
3 A' 1495 1467 42.14      
4 A' 1357 1331 9.44      
5 A' 1216 1193 29.68      
6 A' 1064 1044 38.39      
7 A' 536 526 1.08      
8 A" 806 791 41.28      
9 A" 662 650 15.07      

Unscaled Zero Point Vibrational Energy (zpe) 6727.8 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 6602.0 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 LSDA/6-31G**
ABC
2.72747 0.41948 0.36356

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.452 0.000
C2 1.064 -0.248 0.000
H3 0.967 -1.340 0.000
H4 1.992 0.327 0.000
O5 -1.168 -0.140 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.27372.03601.99591.3094
C21.27371.09601.09182.2343
H32.03601.09601.95692.4484
H41.99591.09181.95693.1941
O51.30942.23432.44843.1941

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 118.257 O1 C2 H4 114.867
C2 O1 O5 119.751 H3 C2 H4 126.876
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.001      
2 C -0.047      
3 H 0.174      
4 H 0.174      
5 O -0.302      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.397 -0.401 0.000 3.420
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.246 -0.294 0.000
y -0.294 -16.139 0.000
z 0.000 0.000 -17.092
Traceless
 xyz
x 0.370 -0.294 0.000
y -0.294 0.531 0.000
z 0.000 0.000 -0.900
Polar
3z2-r2-1.800
x2-y2-0.107
xy-0.294
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.390 -0.110 0.000
y -0.110 2.350 0.000
z 0.000 0.000 1.349


<r2> (average value of r2) Å2
<r2> 36.968
(<r2>)1/2 6.080