return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for ClOOCl (Dichlorine dioxide)

using model chemistry: HF/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/6-31+G**
 hartrees
Energy at 0K-1068.434284
Energy at 298.15K-1068.435748
HF Energy-1068.434284
Nuclear repulsion energy213.864848
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 HF/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 1082 978 8.72      
2 A 831 751 0.08      
3 A 390 353 1.40      
4 A 116 105 0.51      
5 B 832 752 1.79      
6 B 514 465 0.78      

Unscaled Zero Point Vibrational Energy (zpe) 1882.2 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 1701.9 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 HF/6-31+G**
ABC
0.50826 0.07921 0.07225

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.342 0.589 0.752
O2 -0.342 -0.589 0.752
Cl3 -0.342 1.647 -0.354
Cl4 0.342 -1.647 -0.354

Atom - Atom Distances (Å)
  O1 O2 Cl3 Cl4
O11.36241.67622.4951
O21.36242.49511.6762
Cl31.67622.49513.3650
Cl42.49511.67623.3650

picture of Dichlorine dioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 Cl4 109.971 O2 O1 Cl3 109.971
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.163      
2 O -0.163      
3 Cl 0.163      
4 Cl 0.163      


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 -1.035 1.035
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.884 -1.543 0.000
y -1.543 -32.629 0.000
z 0.000 0.000 -35.504
Traceless
 xyz
x -1.818 -1.543 0.000
y -1.543 3.065 0.000
z 0.000 0.000 -1.248
Polar
3z2-r2-2.496
x2-y2-3.255
xy-1.543
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.610 -0.900 0.000
y -0.900 7.273 0.000
z 0.000 0.000 4.246


<r2> (average value of r2) Å2
<r2> 138.633
(<r2>)1/2 11.774