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All results from a given calculation for CH2O2 (Dioxirane)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-188.502463
Energy at 298.15K-188.505277
Nuclear repulsion energy70.651562
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 B1B95/3-21G
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 3135 2999 9.58      
2 A1 1584 1515 1.25      
3 A1 1218 1166 9.07      
4 A1 837 800 2.32      
5 A2 978 935 0.00      
6 B1 3243 3102 31.56      
7 B1 1152 1102 4.33      
8 B2 1211 1158 11.91      
9 B2 797 763 5.40      

Unscaled Zero Point Vibrational Energy (zpe) 7076.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 6770.0 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 B1B95/3-21G
ABC
0.89156 0.79482 0.45977

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.770
H2 0.925 0.000 1.334
H3 -0.925 0.000 1.334
O4 0.000 0.780 -0.455
O5 0.000 -0.780 -0.455

Atom - Atom Distances (Å)
  C1 H2 H3 O4 O5
C11.08401.08401.45261.4526
H21.08401.85072.16072.1607
H31.08401.85072.16072.1607
O41.45262.16072.16071.5608
O51.45262.16072.16071.5608

picture of Dioxirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 O5 57.503 C1 O5 O4 57.503
H2 C1 H3 117.225 H2 C1 O4 116.058
H2 C1 O5 116.058 H3 C1 O4 116.058
H3 C1 O5 116.058 O4 C1 O5 64.993
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.082      
2 H 0.236      
3 H 0.236      
4 O -0.277      
5 O -0.277      


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 2.836 2.836
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.266 0.000 0.000
y 0.000 -17.826 0.000
z 0.000 0.000 -15.189
Traceless
 xyz
x 0.242 0.000 0.000
y 0.000 -2.099 0.000
z 0.000 0.000 1.857
Polar
3z2-r23.713
x2-y21.560
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.653 0.000 0.000
y 0.000 2.251 0.000
z 0.000 0.000 2.803


<r2> (average value of r2) Å2
<r2> 32.152
(<r2>)1/2 5.670