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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: mPW1PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-187.076064
Energy at 298.15K-187.078910
Nuclear repulsion energy71.545849
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 mPW1PW91/STO-3G
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 3318 2916 1.78      
2 A1 1658 1457 0.12      
3 A1 1442 1268 0.99      
4 A1 1104 970 0.27      
5 A2 1013 890 0.00      
6 B1 3470 3050 3.01      
7 B1 1153 1014 6.96      
8 B2 1222 1074 8.58      
9 B2 1000 879 1.79      

Unscaled Zero Point Vibrational Energy (zpe) 7689.3 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 6758.1 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 mPW1PW91/STO-3G
ABC
0.88025 0.84606 0.47425

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.788
H2 0.936 0.000 1.384
H3 -0.936 0.000 1.384
O4 0.000 0.737 -0.468
O5 0.000 -0.737 -0.468

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.10951.10951.45641.4564
H21.10951.87162.20222.2022
H31.10951.87162.20222.2022
O41.45642.20222.20221.4744
O51.45642.20222.20221.4744

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 59.591 C1 O5 O4 59.591
H2 C1 H3 115.007 H2 C1 O4 117.603
H2 C1 O5 117.603 H3 C1 O4 117.603
H3 C1 O5 117.603 O4 C1 O5 60.819
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.009      
2 H 0.100      
3 H 0.100      
4 O -0.095      
5 O -0.095      


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 1.661 1.661
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.895 0.000 0.000
y 0.000 -16.173 0.000
z 0.000 0.000 -14.234
Traceless
 xyz
x 0.309 0.000 0.000
y 0.000 -1.609 0.000
z 0.000 0.000 1.300
Polar
3z2-r22.600
x2-y21.278
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.878 0.000 0.000
y 0.000 1.229 0.000
z 0.000 0.000 1.865


<r2> (average value of r2) Å2
<r2> 30.941
(<r2>)1/2 5.562