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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-188.635518
Energy at 298.15K-188.638471
Nuclear repulsion energy75.060140
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 HF/aug-cc-pVDZ
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 3260 2969 39.04      
2 A1 1664 1515 7.49      
3 A1 1462 1331 69.58      
4 A1 937 853 2.03      
5 A2 1138 1036 0.00      
6 B1 3365 3064 23.52      
7 B1 1266 1152 11.92      
8 B2 1388 1264 4.23      
9 B2 971 884 35.90      

Unscaled Zero Point Vibrational Energy (zpe) 7725.1 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 7034.5 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 HF/aug-cc-pVDZ
ABC
0.98217 0.91750 0.52512

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.722
H2 0.923 0.000 1.290
H3 -0.923 0.000 1.290
O4 0.000 0.722 -0.432
O5 0.000 -0.722 -0.432

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08331.08331.36151.3615
H21.08331.84612.08252.0825
H31.08331.84612.08252.0825
O41.36152.08252.08251.4431
O51.36152.08252.08251.4431

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.996 C1 O5 O4 57.996
H2 C1 H3 116.875 H2 C1 O4 116.351
H2 C1 O5 116.351 H3 C1 O4 116.351
H3 C1 O5 116.351 O4 C1 O5 64.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.272      
2 H -0.146      
3 H -0.146      
4 O -0.490      
5 O -0.490      


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 2.836 2.836
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.481 0.000 0.000
y 0.000 -18.027 0.000
z 0.000 0.000 -15.593
Traceless
 xyz
x 0.329 0.000 0.000
y 0.000 -1.989 0.000
z 0.000 0.000 1.661
Polar
3z2-r23.322
x2-y21.545
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.461 0.000 0.000
y 0.000 3.114 0.000
z 0.000 0.000 3.127


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000