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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-188.536405
Energy at 298.15K-188.539139
Nuclear repulsion energy69.263864
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 BLYP/3-21G
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 3004 2987 17.80      
2 A1 1552 1543 2.77      
3 A1 1136 1129 7.43      
4 A1 757 752 2.20      
5 A2 916 911 0.00      
6 B1 3097 3080 51.14      
7 B1 1116 1110 2.93      
8 B2 1162 1156 7.65      
9 B2 737 733 4.87      

Unscaled Zero Point Vibrational Energy (zpe) 6737.8 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 6700.7 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 BLYP/3-21G
ABC
0.86706 0.75525 0.44056

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.780
H2 0.932 0.000 1.357
H3 -0.932 0.000 1.357
O4 0.000 0.802 -0.462
O5 0.000 -0.802 -0.462

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.09571.09571.47871.4787
H21.09571.86312.19552.1955
H31.09571.86312.19552.1955
O41.47872.19552.19551.6038
O51.47872.19552.19551.6038

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.160 C1 O5 O4 57.160
H2 C1 H3 116.470 H2 C1 O4 116.251
H2 C1 O5 116.251 H3 C1 O4 116.251
H3 C1 O5 116.251 O4 C1 O5 65.681
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.086      
2 H 0.202      
3 H 0.202      
4 O -0.245      
5 O -0.245      


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 2.545 2.545
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.438 0.000 0.000
y 0.000 -17.600 0.000
z 0.000 0.000 -15.320
Traceless
 xyz
x 0.022 0.000 0.000
y 0.000 -1.721 0.000
z 0.000 0.000 1.700
Polar
3z2-r23.399
x2-y21.162
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.723 0.000 0.000
y 0.000 2.278 0.000
z 0.000 0.000 2.926


<r2> (average value of r2) Å2
<r2> 33.054
(<r2>)1/2 5.749