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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: B3PW91/6-31+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 B3PW91/6-31+G**
 hartrees
Energy at 0K-189.554028
Energy at 298.15K-189.556900
Nuclear repulsion energy73.452927
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 B3PW91/6-31+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 3085 2962 30.85      
2 A1 1552 1490 6.34      
3 A1 1339 1286 44.15      
4 A1 835 802 1.87      
5 A2 1023 982 0.00      
6 B1 3187 3060 27.10      
7 B1 1180 1133 7.24      
8 B2 1253 1203 2.61      
9 B2 930 893 26.32      

Unscaled Zero Point Vibrational Energy (zpe) 7191.9 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 6905.0 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 B3PW91/6-31+G**
ABC
0.95799 0.86364 0.50132

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.733
H2 0.930 0.000 1.304
H3 -0.930 0.000 1.304
O4 0.000 0.745 -0.438
O5 0.000 -0.745 -0.438

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09201.09201.38751.3875
H21.09201.86082.11092.1109
H31.09201.86082.11092.1109
O41.38752.11092.11091.4908
O51.38752.11092.11091.4908

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.504 C1 O5 O4 57.504
H2 C1 H3 116.859 H2 C1 O4 116.205
H2 C1 O5 116.205 H3 C1 O4 116.205
H3 C1 O5 116.205 O4 C1 O5 64.992
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.093      
2 H 0.158      
3 H 0.158      
4 O -0.204      
5 O -0.204      


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 2.739 2.739
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.724 0.000 0.000
y 0.000 -18.011 0.000
z 0.000 0.000 -15.677
Traceless
 xyz
x 0.120 0.000 0.000
y 0.000 -1.810 0.000
z 0.000 0.000 1.690
Polar
3z2-r23.381
x2-y21.286
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.482 0.000 0.000
y 0.000 2.865 0.000
z 0.000 0.000 3.160


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000