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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-38.677219
Energy at 298.15K-38.680056
Nuclear repulsion energy40.725996
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 B3LYP/CEP-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 3079 2973 54.48      
2 A1 1544 1491 6.70      
3 A1 1301 1257 41.10      
4 A1 813 785 1.36      
5 A2 1000 965 0.00      
6 B1 3178 3069 53.70      
7 B1 1172 1132 7.11      
8 B2 1236 1194 5.80      
9 B2 880 850 20.89      

Unscaled Zero Point Vibrational Energy (zpe) 7100.8 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 6857.2 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 B3LYP/CEP-31G*
ABC
0.93692 0.83779 0.48768

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.741
H2 0.938 0.000 1.319
H3 -0.938 0.000 1.319
O4 0.000 0.757 -0.443
O5 0.000 -0.757 -0.443

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.10151.10151.40541.4054
H21.10151.87612.13452.1345
H31.10151.87612.13452.1345
O41.40542.13452.13451.5147
O51.40542.13452.13451.5147

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.393 C1 O5 O4 57.393
H2 C1 H3 116.762 H2 C1 O4 116.208
H2 C1 O5 116.208 H3 C1 O4 116.208
H3 C1 O5 116.208 O4 C1 O5 65.214
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.181      
2 H 0.204      
3 H 0.204      
4 O -0.114      
5 O -0.114      


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 2.787 2.787
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.294 0.000 0.000
y 0.000 -17.782 0.000
z 0.000 0.000 -15.310
Traceless
 xyz
x 0.252 0.000 0.000
y 0.000 -1.981 0.000
z 0.000 0.000 1.728
Polar
3z2-r23.457
x2-y21.489
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.922 0.000 0.000
y 0.000 2.700 0.000
z 0.000 0.000 2.887


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