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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: TPSSh/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/6-31+G**
 hartrees
Energy at 0K-189.636311
Energy at 298.15K-189.639172
HF Energy-189.636311
Nuclear repulsion energy72.980492
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 TPSSh/6-31+G**
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 3082 2966 32.39      
2 A1 1561 1503 6.56      
3 A1 1310 1261 43.80      
4 A1 819 789 1.55      
5 A2 1019 981 0.00      
6 B1 3182 3063 30.58      
7 B1 1178 1134 7.32      
8 B2 1254 1207 2.49      
9 B2 915 881 24.62      

Unscaled Zero Point Vibrational Energy (zpe) 7160.6 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 6892.1 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 TPSSh/6-31+G**
ABC
0.95306 0.84639 0.49409

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.732
H2 0.928 0.000 1.309
H3 -0.928 0.000 1.309
O4 0.000 0.743 -0.438
O5 0.000 -0.743 -0.438

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09221.09221.38601.3860
H21.09221.85502.11262.1126
H31.09221.85502.11262.1126
O41.38602.11262.11261.4866
O51.38602.11262.11261.4866

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.570 C1 O5 O4 57.570
H2 C1 H3 116.260 H2 C1 O4 116.465
H2 C1 O5 116.465 H3 C1 O4 116.465
H3 C1 O5 116.465 O4 C1 O5 64.861
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.093      
2 H 0.156      
3 H 0.156      
4 O -0.202      
5 O -0.202      


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 2.742 2.742
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 2.514 0.000 0.000
y 0.000 2.935 0.000
z 0.000 0.000 3.216


<r2> (average value of r2) Å2
<r2> 31.072
(<r2>)1/2 5.574