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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: PBEPBE/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-189.435996
Energy at 298.15K-189.438831
Nuclear repulsion energy72.911935
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/6-31G(2df,p)
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 2968 2937 35.32      
2 A1 1498 1483 4.05      
3 A1 1285 1271 34.24      
4 A1 808 800 2.42      
5 A2 967 957 0.00      
6 B1 3058 3027 41.06      
7 B1 1143 1131 6.61      
8 B2 1198 1185 2.26      
9 B2 906 897 17.00      

Unscaled Zero Point Vibrational Energy (zpe) 6915.3 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 6844.1 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/6-31G(2df,p)
ABC
0.94678 0.84863 0.49376

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.735
H2 0.936 0.000 1.319
H3 -0.936 0.000 1.319
O4 0.000 0.752 -0.440
O5 0.000 -0.752 -0.440

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.10271.10271.39541.3954
H21.10271.87112.12952.1295
H31.10271.87112.12952.1295
O41.39542.12952.12951.5044
O51.39542.12952.12951.5044

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.380 C1 O5 O4 57.380
H2 C1 H3 116.086 H2 C1 O4 116.474
H2 C1 O5 116.474 H3 C1 O4 116.474
H3 C1 O5 116.474 O4 C1 O5 65.240
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.007      
2 H 0.133      
3 H 0.133      
4 O -0.129      
5 O -0.129      


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 2.185 2.185
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.377 0.000 0.000
y 0.000 -17.305 0.000
z 0.000 0.000 -15.482
Traceless
 xyz
x 0.016 0.000 0.000
y 0.000 -1.375 0.000
z 0.000 0.000 1.359
Polar
3z2-r22.718
x2-y20.928
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.406 0.000 0.000
y 0.000 2.625 0.000
z 0.000 0.000 3.123


<r2> (average value of r2) Å2
<r2> 30.860
(<r2>)1/2 5.555