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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-189.556635
Energy at 298.15K-189.559510
Nuclear repulsion energy73.568501
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 B3PW91/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 3062 2955 31.34      
2 A1 1527 1474 8.14      
3 A1 1341 1295 44.07      
4 A1 842 812 2.23      
5 A2 1011 975 0.00      
6 B1 3163 3052 38.64      
7 B1 1169 1128 9.59      
8 B2 1239 1196 1.76      
9 B2 935 902 22.94      

Unscaled Zero Point Vibrational Energy (zpe) 7144.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 6894.4 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 B3PW91/cc-pVDZ
ABC
0.95801 0.86888 0.50341

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.730
H2 0.933 0.000 1.312
H3 -0.933 0.000 1.312
O4 0.000 0.743 -0.438
O5 0.000 -0.743 -0.438

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09991.09991.38371.3837
H21.09991.86652.11742.1174
H31.09991.86652.11742.1174
O41.38372.11742.11741.4854
O51.38372.11742.11741.4854

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.537 C1 O5 O4 57.537
H2 C1 H3 116.105 H2 C1 O4 116.517
H2 C1 O5 116.517 H3 C1 O4 116.517
H3 C1 O5 116.517 O4 C1 O5 64.926
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.236      
2 H 0.057      
3 H 0.057      
4 O -0.175      
5 O -0.175      


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 2.446 2.446
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.296 0.000 0.000
y 0.000 -17.400 0.000
z 0.000 0.000 -15.381
Traceless
 xyz
x 0.094 0.000 0.000
y 0.000 -1.561 0.000
z 0.000 0.000 1.467
Polar
3z2-r22.934
x2-y21.104
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.024 0.000 0.000
y 0.000 2.439 0.000
z 0.000 0.000 2.866


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000