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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-189.432442
Energy at 298.15K-189.435268
Nuclear repulsion energy72.655063
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 PBEPBE/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 2960 2943 36.15      
2 A1 1472 1464 7.28      
3 A1 1281 1274 38.05      
4 A1 795 790 2.39      
5 A2 957 951 0.00      
6 B1 3053 3035 49.88      
7 B1 1129 1122 8.00      
8 B2 1183 1176 1.50      
9 B2 900 894 19.44      

Unscaled Zero Point Vibrational Energy (zpe) 6864.9 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 6825.0 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 PBEPBE/cc-pVDZ
ABC
0.94248 0.84056 0.49041

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.735
H2 0.941 0.000 1.324
H3 -0.941 0.000 1.324
O4 0.000 0.756 -0.441
O5 0.000 -0.756 -0.441

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.11001.11001.39841.3984
H21.11001.88132.13872.1387
H31.11001.88132.13872.1387
O41.39842.13872.13871.5115
O51.39842.13872.13871.5115

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.285 C1 O5 O4 57.285
H2 C1 H3 115.872 H2 C1 O4 116.529
H2 C1 O5 116.529 H3 C1 O4 116.529
H3 C1 O5 116.529 O4 C1 O5 65.430
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.222      
2 H 0.045      
3 H 0.045      
4 O -0.156      
5 O -0.156      


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 2.253 2.253
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.487 0.000 0.000
y 0.000 -17.341 0.000
z 0.000 0.000 -15.544
Traceless
 xyz
x -0.044 0.000 0.000
y 0.000 -1.326 0.000
z 0.000 0.000 1.370
Polar
3z2-r22.740
x2-y20.854
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.131 0.000 0.000
y 0.000 2.472 0.000
z 0.000 0.000 2.995


<r2> (average value of r2) Å2
<r2> 31.055
(<r2>)1/2 5.573