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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: B3LYP/3-21G

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/3-21G
 hartrees
Energy at 0K-188.564582
Energy at 298.15K-188.567374
Nuclear repulsion energy70.259824
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/3-21G
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 3112 3003 11.47      
2 A1 1588 1533 1.68      
3 A1 1196 1154 8.83      
4 A1 810 781 2.14      
5 A2 971 937 0.00      
6 B1 3214 3101 35.71      
7 B1 1151 1110 4.49      
8 B2 1209 1167 9.74      
9 B2 768 741 5.34      

Unscaled Zero Point Vibrational Energy (zpe) 7009.2 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 6763.2 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/3-21G
ABC
0.88566 0.78266 0.45413

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.772
H2 0.925 0.000 1.341
H3 -0.925 0.000 1.341
O4 0.000 0.787 -0.457
O5 0.000 -0.787 -0.457

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08601.08601.45961.4596
H21.08601.85072.16962.1696
H31.08601.85072.16962.1696
O41.45962.16962.16961.5740
O51.45962.16962.16961.5740

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.372 C1 O5 O4 57.372
H2 C1 H3 116.884 H2 C1 O4 116.153
H2 C1 O5 116.153 H3 C1 O4 116.153
H3 C1 O5 116.153 O4 C1 O5 65.255
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.107      
2 H 0.218      
3 H 0.218      
4 O -0.272      
5 O -0.272      


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 2.779 2.779
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.327 0.000 0.000
y 0.000 -17.788 0.000
z 0.000 0.000 -15.262
Traceless
 xyz
x 0.198 0.000 0.000
y 0.000 -1.993 0.000
z 0.000 0.000 1.795
Polar
3z2-r23.591
x2-y21.461
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.657 0.000 0.000
y 0.000 2.268 0.000
z 0.000 0.000 2.822


<r2> (average value of r2) Å2
<r2> 32.417
(<r2>)1/2 5.694