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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: B1B95/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 B1B95/aug-cc-pVTZ
 hartrees
Energy at 0K-189.630725
Energy at 298.15K-189.633623
HF Energy-189.630725
Nuclear repulsion energy74.129738
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 B1B95/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 3084 2956 34.43      
2 A1 1553 1488 3.85      
3 A1 1356 1300 47.36      
4 A1 873 836 1.97      
5 A2 1041 997 0.00      
6 B1 3180 3048 22.25      
7 B1 1181 1132 7.48      
8 B2 1267 1215 3.70      
9 B2 947 907 26.77      

Unscaled Zero Point Vibrational Energy (zpe) 7239.7 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 6939.3 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 B1B95/aug-cc-pVTZ
ABC
0.96908 0.88538 0.51105

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.726
H2 0.924 0.000 1.299
H3 -0.924 0.000 1.299
O4 0.000 0.732 -0.435
O5 0.000 -0.732 -0.435

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08661.08661.37241.3724
H21.08661.84742.09592.0959
H31.08661.84742.09592.0959
O41.37242.09592.09591.4637
O51.37242.09592.09591.4637

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.773 C1 O5 O4 57.773
H2 C1 H3 116.442 H2 C1 O4 116.456
H2 C1 O5 116.456 H3 C1 O4 116.456
H3 C1 O5 116.456 O4 C1 O5 64.453
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.141      
2 H 0.367      
3 H 0.367      
4 O -0.297      
5 O -0.297      


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 2.501 2.501
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.560 0.000 0.000
y 0.000 -17.887 0.000
z 0.000 0.000 -15.638
Traceless
 xyz
x 0.202 0.000 0.000
y 0.000 -1.788 0.000
z 0.000 0.000 1.586
Polar
3z2-r23.171
x2-y21.327
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.779 0.000 0.000
y 0.000 3.245 0.000
z 0.000 0.000 3.445


<r2> (average value of r2) Å2
<r2> 30.378
(<r2>)1/2 5.512