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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-189.489491
Energy at 298.15K-189.492301
Nuclear repulsion energy71.066113
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 mPW1PW91/6-31G
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 3169 2999 9.69      
2 A1 1577 1492 0.53      
3 A1 1234 1168 22.60      
4 A1 768 727 0.92      
5 A2 1017 962 0.00      
6 B1 3285 3110 25.94      
7 B1 1168 1106 6.37      
8 B2 1255 1188 9.31      
9 B2 823 779 11.52      

Unscaled Zero Point Vibrational Energy (zpe) 7147.4 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 6765.8 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 mPW1PW91/6-31G
ABC
0.92135 0.78795 0.46520

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.754
H2 0.926 0.000 1.317
H3 -0.926 0.000 1.317
O4 0.000 0.784 -0.447
O5 0.000 -0.784 -0.447

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08361.08361.43441.4344
H21.08361.85112.14142.1414
H31.08361.85112.14142.1414
O41.43442.14142.14141.5682
O51.43442.14142.14141.5682

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 56.864 C1 O5 O4 56.864
H2 C1 H3 117.325 H2 C1 O4 115.817
H2 C1 O5 115.817 H3 C1 O4 115.817
H3 C1 O5 115.817 O4 C1 O5 66.273
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.189      
2 H 0.206      
3 H 0.206      
4 O -0.300      
5 O -0.300      


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 3.145 3.145
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.514 0.000 0.000
y 0.000 -18.255 0.000
z 0.000 0.000 -15.611
Traceless
 xyz
x 0.419 0.000 0.000
y 0.000 -2.192 0.000
z 0.000 0.000 1.773
Polar
3z2-r23.546
x2-y21.741
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.749 0.000 0.000
y 0.000 2.640 0.000
z 0.000 0.000 2.948


<r2> (average value of r2) Å2
<r2> 32.121
(<r2>)1/2 5.668