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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: B3PW91/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-189.622521
Energy at 298.15K-189.625404
HF Energy-189.622521
Nuclear repulsion energy73.768109
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 B3PW91/aug-cc-pVTZ
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 3061 2955 35.32      
2 A1 1543 1489 2.85      
3 A1 1334 1288 46.48      
4 A1 849 820 1.96      
5 A2 1031 995 0.00      
6 B1 3156 3046 22.88      
7 B1 1176 1135 7.03      
8 B2 1259 1216 3.91      
9 B2 926 894 26.40      

Unscaled Zero Point Vibrational Energy (zpe) 7167.9 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 6917.8 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 B3PW91/aug-cc-pVTZ
ABC
0.96369 0.87327 0.50581

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.728
H2 0.926 0.000 1.303
H3 -0.926 0.000 1.303
O4 0.000 0.735 -0.436
O5 0.000 -0.735 -0.436

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09031.09031.37631.3763
H21.09031.85222.10292.1029
H31.09031.85222.10292.1029
O41.37632.10292.10291.4701
O51.37632.10292.10291.4701

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.717 C1 O5 O4 57.717
H2 C1 H3 116.294 H2 C1 O4 116.498
H2 C1 O5 116.498 H3 C1 O4 116.498
H3 C1 O5 116.498 O4 C1 O5 64.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.086      
2 H 0.277      
3 H 0.277      
4 O -0.320      
5 O -0.320      


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 2.489 2.489
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.596 0.000 0.000
y 0.000 -17.888 0.000
z 0.000 0.000 -15.670
Traceless
 xyz
x 0.183 0.000 0.000
y 0.000 -1.755 0.000
z 0.000 0.000 1.572
Polar
3z2-r23.145
x2-y21.292
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.812 0.000 0.000
y 0.000 3.279 0.000
z 0.000 0.000 3.481


<r2> (average value of r2) Å2
<r2> 30.584
(<r2>)1/2 5.530