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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: PBEPBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-31+G**
 hartrees
Energy at 0K-189.434353
Energy at 298.15K-189.437177
Nuclear repulsion energy72.522409
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 PBEPBE/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2993 2959 33.88      
2 A1 1498 1481 5.31      
3 A1 1277 1262 39.96      
4 A1 787 778 1.76      
5 A2 973 962 0.00      
6 B1 3089 3054 31.45      
7 B1 1140 1127 5.82      
8 B2 1200 1186 2.60      
9 B2 895 885 24.59      

Unscaled Zero Point Vibrational Energy (zpe) 6925.8 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 6846.9 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 PBEPBE/6-31+G**
ABC
0.94233 0.83470 0.48813

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.739
H2 0.938 0.000 1.315
H3 -0.938 0.000 1.315
O4 0.000 0.759 -0.441
O5 0.000 -0.759 -0.441

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.10141.10141.40281.4028
H21.10141.87692.13112.1311
H31.10141.87692.13112.1311
O41.40282.13112.13111.5177
O51.40282.13112.13111.5177

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.252 C1 O5 O4 57.252
H2 C1 H3 116.866 H2 C1 O4 116.123
H2 C1 O5 116.123 H3 C1 O4 116.123
H3 C1 O5 116.123 O4 C1 O5 65.496
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.055      
2 H 0.161      
3 H 0.161      
4 O -0.189      
5 O -0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.618 2.618
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.020 0.000 0.000
y 0.000 -18.126 0.000
z 0.000 0.000 -15.933
Traceless
 xyz
x 0.009 0.000 0.000
y 0.000 -1.649 0.000
z 0.000 0.000 1.640
Polar
3z2-r23.280
x2-y21.106
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.651 0.000 0.000
y 0.000 2.982 0.000
z 0.000 0.000 3.329


<r2> (average value of r2) Å2
<r2> 31.457
(<r2>)1/2 5.609