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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: PBEPBE/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/cc-pVTZ
 hartrees
Energy at 0K-189.496314
Energy at 298.15K-189.499150
Nuclear repulsion energy72.852410
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/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 2968 2948 40.57      
2 A1 1491 1481 3.42      
3 A1 1274 1265 39.45      
4 A1 804 798 2.09      
5 A2 976 969 0.00      
6 B1 3058 3037 38.09      
7 B1 1138 1130 6.33      
8 B2 1199 1191 3.37      
9 B2 893 887 20.53      

Unscaled Zero Point Vibrational Energy (zpe) 6900.3 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 6852.7 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/cc-pVTZ
ABC
0.94867 0.84428 0.49270

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.735
H2 0.935 0.000 1.313
H3 -0.935 0.000 1.313
O4 0.000 0.754 -0.440
O5 0.000 -0.754 -0.440

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09881.09881.39661.3966
H21.09881.86932.12502.1250
H31.09881.86932.12502.1250
O41.39662.12502.12501.5088
O51.39662.12502.12501.5088

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.305 C1 O5 O4 57.305
H2 C1 H3 116.559 H2 C1 O4 116.262
H2 C1 O5 116.262 H3 C1 O4 116.262
H3 C1 O5 116.262 O4 C1 O5 65.391
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.143      
2 H 0.070      
3 H 0.070      
4 O -0.142      
5 O -0.142      


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 2.334 2.334
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.674 0.000 0.000
y 0.000 -17.644 0.000
z 0.000 0.000 -15.731
Traceless
 xyz
x 0.013 0.000 0.000
y 0.000 -1.441 0.000
z 0.000 0.000 1.428
Polar
3z2-r22.857
x2-y20.970
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.468 0.000 0.000
y 0.000 2.888 0.000
z 0.000 0.000 3.300


<r2> (average value of r2) Å2
<r2> 31.063
(<r2>)1/2 5.573