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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G4
 hartrees
Energy at 0K-189.548948
Energy at 298.15K-189.544957
HF Energy-189.631206
Nuclear repulsion energy73.432807
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/6-31G(2df,p)
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 3051 2945 32.65      
2 A1 1550 1496 4.01      
3 A1 1320 1274 39.61      
4 A1 828 799 2.28      
5 A2 1017 981 0.00      
6 B1 3145 3035 35.68      
7 B1 1182 1141 8.46      
8 B2 1255 1211 2.24      
9 B2 909 877 18.71      

Unscaled Zero Point Vibrational Energy (zpe) 7128.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 6879.0 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/6-31G(2df,p)
ABC
0.95978 0.86140 0.50071

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.730
H2 0.927 0.000 1.309
H3 -0.927 0.000 1.309
O4 0.000 0.747 -0.437
O5 0.000 -0.747 -0.437

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09281.09281.38621.3862
H21.09281.85472.11342.1134
H31.09281.85472.11342.1134
O41.38622.11342.11341.4934
O51.38622.11342.11341.4934

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.632 C1 O5 O4 57.632
H2 C1 H3 115.845 H2 C1 O4 116.651
H2 C1 O5 116.651 H3 C1 O4 116.651
H3 C1 O5 116.651 O4 C1 O5 64.735
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.033      
2 H 0.128      
3 H 0.128      
4 O -0.145      
5 O -0.145      


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 2.354 2.354
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 30.559
(<r2>)1/2 5.528