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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: PBEPBE/6-31G**

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**
 hartrees
Energy at 0K-189.423278
Energy at 298.15K-189.426108
Nuclear repulsion energy72.610035
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**
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 2979 2938 34.85      
2 A1 1517 1497 6.47      
3 A1 1290 1272 34.12      
4 A1 800 789 2.57      
5 A2 963 950 0.00      
6 B1 3068 3026 48.33      
7 B1 1150 1134 6.65      
8 B2 1194 1178 1.71      
9 B2 908 896 17.25      

Unscaled Zero Point Vibrational Energy (zpe) 6934.5 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 6839.5 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**
ABC
0.94396 0.83749 0.48911

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.736
H2 0.935 0.000 1.322
H3 -0.935 0.000 1.322
O4 0.000 0.758 -0.441
O5 0.000 -0.758 -0.441

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.10291.10291.40001.4000
H21.10291.86922.13422.1342
H31.10291.86922.13422.1342
O41.40002.13422.13421.5155
O51.40002.13422.13421.5155

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.230 C1 O5 O4 57.230
H2 C1 H3 115.862 H2 C1 O4 116.516
H2 C1 O5 116.516 H3 C1 O4 116.516
H3 C1 O5 116.516 O4 C1 O5 65.540
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.228      
2 H 0.130      
3 H 0.130      
4 O -0.244      
5 O -0.244      


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 2.355 2.355
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.511 0.000 0.000
y 0.000 -17.389 0.000
z 0.000 0.000 -15.522
Traceless
 xyz
x -0.055 0.000 0.000
y 0.000 -1.372 0.000
z 0.000 0.000 1.428
Polar
3z2-r22.856
x2-y20.878
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.182 0.000 0.000
y 0.000 2.473 0.000
z 0.000 0.000 3.025


<r2> (average value of r2) Å2
<r2> 31.080
(<r2>)1/2 5.575