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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: HF/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-188.696059
Energy at 298.15K-188.699024
Nuclear repulsion energy75.536395
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/cc-pVQZ
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 3240 2943 41.74      
2 A1 1692 1537 9.10      
3 A1 1476 1341 70.84      
4 A1 965 877 2.42      
5 A2 1153 1047 0.00      
6 B1 3334 3029 28.37      
7 B1 1287 1170 12.82      
8 B2 1405 1276 3.15      
9 B2 987 896 36.31      

Unscaled Zero Point Vibrational Energy (zpe) 7769.0 cm-1
Scaled (by 0.9084) Zero Point Vibrational Energy (zpe) 7057.3 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 HF/cc-pVQZ
ABC
0.99318 0.93073 0.53158

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.718
H2 0.915 0.000 1.285
H3 -0.915 0.000 1.285
O4 0.000 0.717 -0.430
O5 0.000 -0.717 -0.430

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.07651.07651.35311.3531
H21.07651.82962.07182.0718
H31.07651.82962.07182.0718
O41.35312.07182.07181.4331
O51.35312.07182.07181.4331

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 58.025 C1 O5 O4 58.025
H2 C1 H3 116.381 H2 C1 O4 116.559
H2 C1 O5 116.559 H3 C1 O4 116.559
H3 C1 O5 116.559 O4 C1 O5 63.951
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.365      
2 H 0.057      
3 H 0.057      
4 O -0.239      
5 O -0.239      


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 2.783 2.783
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.291 0.000 0.000
y 0.000 -17.917 0.000
z 0.000 0.000 -15.462
Traceless
 xyz
x 0.399 0.000 0.000
y 0.000 -2.040 0.000
z 0.000 0.000 1.642
Polar
3z2-r23.283
x2-y21.626
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.310 0.000 0.000
y 0.000 2.955 0.000
z 0.000 0.000 3.011


<r2> (average value of r2) Å2
<r2> 29.584
(<r2>)1/2 5.439