return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-189.665748
Energy at 298.15K-189.668604
Nuclear repulsion energy73.346174
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/6-311G*
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 3063 2960 39.73      
2 A1 1562 1510 5.26      
3 A1 1315 1271 48.11      
4 A1 806 779 1.69      
5 A2 1028 994 0.00      
6 B1 3160 3053 46.22      
7 B1 1195 1155 10.22      
8 B2 1251 1209 2.52      
9 B2 899 868 23.40      

Unscaled Zero Point Vibrational Energy (zpe) 7139.3 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 6898.7 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/6-311G*
ABC
0.96385 0.85378 0.49934

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.730
H2 0.928 0.000 1.302
H3 -0.928 0.000 1.302
O4 0.000 0.750 -0.436
O5 0.000 -0.750 -0.436

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09041.09041.38661.3866
H21.09041.85672.10842.1084
H31.09041.85672.10842.1084
O41.38662.10842.10841.5005
O51.38662.10842.10841.5005

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.243 C1 O5 O4 57.243
H2 C1 H3 116.733 H2 C1 O4 116.173
H2 C1 O5 116.173 H3 C1 O4 116.173
H3 C1 O5 116.173 O4 C1 O5 65.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.047      
2 H 0.209      
3 H 0.209      
4 O -0.186      
5 O -0.186      


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 2.604 2.604
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.488 0.000 0.000
y 0.000 -17.788 0.000
z 0.000 0.000 -15.603
Traceless
 xyz
x 0.207 0.000 0.000
y 0.000 -1.742 0.000
z 0.000 0.000 1.535
Polar
3z2-r23.070
x2-y21.300
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.055 0.000 0.000
y 0.000 2.551 0.000
z 0.000 0.000 2.927


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