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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: PBEPBE/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/aug-cc-pVTZ
 hartrees
Energy at 0K-189.501687
Energy at 298.15K-189.504523
Nuclear repulsion energy72.839042
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 PBEPBE/aug-cc-pVTZ
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 2971 2951 38.43      
2 A1 1488 1479 2.24      
3 A1 1272 1264 41.60      
4 A1 801 796 1.84      
5 A2 983 977 0.00      
6 B1 3060 3040 27.24      
7 B1 1135 1128 5.76      
8 B2 1207 1199 3.93      
9 B2 891 885 24.05      

Unscaled Zero Point Vibrational Energy (zpe) 6903.9 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 6859.0 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 PBEPBE/aug-cc-pVTZ
ABC
0.94785 0.84433 0.49259

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.736
H2 0.936 0.000 1.312
H3 -0.936 0.000 1.312
O4 0.000 0.754 -0.440
O5 0.000 -0.754 -0.440

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09871.09871.39731.3973
H21.09871.87112.12472.1247
H31.09871.87112.12472.1247
O41.39732.12472.12471.5086
O51.39732.12472.12471.5086

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.327 C1 O5 O4 57.327
H2 C1 H3 116.763 H2 C1 O4 116.187
H2 C1 O5 116.187 H3 C1 O4 116.187
H3 C1 O5 116.187 O4 C1 O5 65.345
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.004      
2 H 0.273      
3 H 0.273      
4 O -0.275      
5 O -0.275      


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 2.387 2.387
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.918 0.000 0.000
y 0.000 -18.035 0.000
z 0.000 0.000 -15.945
Traceless
 xyz
x 0.072 0.000 0.000
y 0.000 -1.604 0.000
z 0.000 0.000 1.532
Polar
3z2-r23.063
x2-y21.117
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.020 0.000 0.000
y 0.000 3.435 0.000
z 0.000 0.000 3.697


<r2> (average value of r2) Å2
<r2> 31.244
(<r2>)1/2 5.590