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: B97D3/6-31+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 B97D3/6-31+G**
 hartrees
Energy at 0K-189.523403
Energy at 298.15K-189.526225
HF Energy-189.523403
Nuclear repulsion energy72.561969
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 B97D3/6-31+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 3002 2951 41.18      
2 A1 1521 1495 6.36      
3 A1 1268 1247 44.84      
4 A1 771 758 1.70      
5 A2 987 970 0.00      
6 B1 3097 3044 40.28      
7 B1 1156 1136 6.49      
8 B2 1222 1201 1.90      
9 B2 884 869 24.68      

Unscaled Zero Point Vibrational Energy (zpe) 6954.1 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 6834.4 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 B97D3/6-31+G**
ABC
0.94745 0.83230 0.48816

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.736
H2 0.934 0.000 1.314
H3 -0.934 0.000 1.314
O4 0.000 0.760 -0.440
O5 0.000 -0.760 -0.440

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09771.09771.40081.4008
H21.09771.86722.12742.1274
H31.09771.86722.12742.1274
O41.40082.12742.12741.5208
O51.40082.12742.12741.5208

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.124 C1 O5 O4 57.124
H2 C1 H3 116.534 H2 C1 O4 116.214
H2 C1 O5 116.214 H3 C1 O4 116.214
H3 C1 O5 116.214 O4 C1 O5 65.753
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.100      
2 H 0.149      
3 H 0.149      
4 O -0.200      
5 O -0.200      


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 2.668 2.668
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.895 0.000 0.000
y 0.000 -17.984 0.000
z 0.000 0.000 -15.812
Traceless
 xyz
x 0.003 0.000 0.000
y 0.000 -1.630 0.000
z 0.000 0.000 1.627
Polar
3z2-r23.254
x2-y21.089
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.608 0.000 0.000
y 0.000 2.984 0.000
z 0.000 0.000 3.301


<r2> (average value of r2) Å2
<r2> 31.353
(<r2>)1/2 5.599