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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-189.387827
Energy at 298.15K-189.390436
HF Energy-189.387827
Nuclear repulsion energy70.541499
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 HSEh1PBE/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' 3331 3179 0.36      
2 A' 3172 3027 3.24      
3 A' 1566 1494 33.93      
4 A' 1417 1352 13.25      
5 A' 1257 1200 25.18      
6 A' 1021 974 85.05      
7 A' 541 516 0.38      
8 A" 903 861 41.03      
9 A" 691 660 4.82      

Unscaled Zero Point Vibrational Energy (zpe) 6948.9 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 6631.4 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 HSEh1PBE/6-31G**
ABC
2.74195 0.41933 0.36371

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.453 0.000
C2 1.063 -0.224 0.000
H3 0.996 -1.308 0.000
H4 1.980 0.352 0.000
O5 -1.169 -0.166 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.26032.02251.98291.3229
C21.26031.08591.08302.2333
H32.02251.08591.92992.4476
H41.98291.08301.92993.1920
O51.32292.23332.44763.1920

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 118.906 O1 C2 H4 115.398
C2 O1 O5 119.639 H3 C2 H4 125.696
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.028      
2 C 0.025      
3 H 0.174      
4 H 0.172      
5 O -0.343      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.890 -0.407 0.000 3.911
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.109 -0.453 0.000
y -0.453 -16.060 0.000
z 0.000 0.000 -16.983
Traceless
 xyz
x 0.413 -0.453 0.000
y -0.453 0.486 0.000
z 0.000 0.000 -0.898
Polar
3z2-r2-1.796
x2-y2-0.049
xy-0.453
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.525 -0.075 0.000
y -0.075 2.265 0.000
z 0.000 0.000 1.322


<r2> (average value of r2) Å2
<r2> 36.863
(<r2>)1/2 6.071