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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-189.579114
Energy at 298.15K-189.582000
Nuclear repulsion energy73.823009
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 mPW1PW91/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 3086 2957 29.66      
2 A1 1537 1473 8.93      
3 A1 1359 1302 44.83      
4 A1 857 821 2.22      
5 A2 1021 978 0.00      
6 B1 3188 3055 36.23      
7 B1 1176 1127 9.97      
8 B2 1249 1197 1.71      
9 B2 948 908 23.88      

Unscaled Zero Point Vibrational Energy (zpe) 7209.9 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 6909.2 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 mPW1PW91/cc-pVDZ
ABC
0.96179 0.87733 0.50713

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.728
H2 0.932 0.000 1.309
H3 -0.932 0.000 1.309
O4 0.000 0.739 -0.437
O5 0.000 -0.739 -0.437

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09781.09781.37971.3797
H21.09781.86382.11222.1122
H31.09781.86382.11222.1122
O41.37972.11222.11221.4777
O51.37972.11222.11221.4777

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.621 C1 O5 O4 57.621
H2 C1 H3 116.172 H2 C1 O4 116.516
H2 C1 O5 116.516 H3 C1 O4 116.516
H3 C1 O5 116.516 O4 C1 O5 64.758
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.241      
2 H 0.056      
3 H 0.056      
4 O -0.177      
5 O -0.177      


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 2.463 2.463
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.281 0.000 0.000
y 0.000 -17.417 0.000
z 0.000 0.000 -15.370
Traceless
 xyz
x 0.112 0.000 0.000
y 0.000 -1.592 0.000
z 0.000 0.000 1.479
Polar
3z2-r22.958
x2-y21.136
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.007 0.000 0.000
y 0.000 2.428 0.000
z 0.000 0.000 2.839


<r2> (average value of r2) Å2
<r2> 30.349
(<r2>)1/2 5.509