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/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-189.702004
Energy at 298.15K-189.704865
HF Energy-189.702004
Nuclear repulsion energy73.407797
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/Def2TZVPP
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 3057 2942 37.13      
2 A1 1549 1491 3.50      
3 A1 1310 1261 47.04      
4 A1 817 786 1.91      
5 A2 1028 990 0.00      
6 B1 3150 3032 29.51      
7 B1 1181 1137 7.85      
8 B2 1263 1216 3.16      
9 B2 897 863 24.16      

Unscaled Zero Point Vibrational Energy (zpe) 7125.8 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 6859.3 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/Def2TZVPP
ABC
0.96340 0.85710 0.50004

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.728
H2 0.924 0.000 1.304
H3 -0.924 0.000 1.304
O4 0.000 0.740 -0.436
O5 0.000 -0.740 -0.436

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08921.08921.37901.3790
H21.08921.84862.10452.1045
H31.08921.84862.10452.1045
O41.37902.10452.10451.4797
O51.37902.10452.10451.4797

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.551 C1 O5 O4 57.551
H2 C1 H3 116.118 H2 C1 O4 116.516
H2 C1 O5 116.516 H3 C1 O4 116.516
H3 C1 O5 116.516 O4 C1 O5 64.897
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.190      
2 H 0.111      
3 H 0.111      
4 O -0.206      
5 O -0.206      


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 2.544 2.544
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.687 0.000 0.000
y 0.000 -17.887 0.000
z 0.000 0.000 -15.771
Traceless
 xyz
x 0.141 0.000 0.000
y 0.000 -1.658 0.000
z 0.000 0.000 1.516
Polar
3z2-r23.033
x2-y21.200
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.474 0.000 0.000
y 0.000 2.993 0.000
z 0.000 0.000 3.271


<r2> (average value of r2) Å2
<r2> 30.812
(<r2>)1/2 5.551