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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-186.161425
Energy at 298.15K-186.164376
Nuclear repulsion energy73.494155
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/STO-3G
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 3582 2924 10.46      
2 A1 1813 1480 0.27      
3 A1 1604 1309 1.31      
4 A1 1276 1042 0.04      
5 A2 1152 940 0.00      
6 B1 3742 3056 0.06      
7 B1 1248 1019 14.96      
8 B2 1373 1121 5.42      
9 B2 1113 909 2.94      

Unscaled Zero Point Vibrational Energy (zpe) 8450.6 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 6899.9 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/STO-3G
ABC
0.94645 0.87552 0.50149

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.774
H2 0.925 0.000 1.358
H3 -0.925 0.000 1.358
O4 0.000 0.709 -0.460
O5 0.000 -0.709 -0.460

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09411.09411.42361.4236
H21.09411.85042.16002.1600
H31.09411.85042.16002.1600
O41.42362.16002.16001.4182
O51.42362.16002.16001.4182

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 60.125 C1 O5 O4 60.125
H2 C1 H3 115.482 H2 C1 O4 117.569
H2 C1 O5 117.569 H3 C1 O4 117.569
H3 C1 O5 117.569 O4 C1 O5 59.750
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.060      
2 H 0.091      
3 H 0.091      
4 O -0.120      
5 O -0.120      


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 1.925 1.925
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.919 0.000 0.000
y 0.000 -16.549 0.000
z 0.000 0.000 -14.417
Traceless
 xyz
x 0.564 0.000 0.000
y 0.000 -1.881 0.000
z 0.000 0.000 1.317
Polar
3z2-r22.634
x2-y21.630
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.860 0.000 0.000
y 0.000 1.193 0.000
z 0.000 0.000 1.840


<r2> (average value of r2) Å2
<r2> 29.985
(<r2>)1/2 5.476