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All results from a given calculation for K2O2 (dipotassium dioxide)

using model chemistry: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-1349.734627
Energy at 298.15K 
HF Energy-1349.734627
Nuclear repulsion energy199.214696
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 HSEh1PBE/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 Ag 785 749 0.00 17.81 0.20 0.33
2 Ag 257 245 0.00 5.47 0.04 0.08
3 B1u 460 440 186.49 0.00 0.00 0.00
4 B2u 186 177 111.40 0.00 0.00 0.00
5 B3g 448 428 0.00 0.98 0.75 0.86
6 B3u 63 60 100.86 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1099.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1049.4 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 HSEh1PBE/6-31+G**
ABC
0.89137 0.04243 0.04050

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 2.258
K2 0.000 0.000 -2.258
O3 0.000 0.769 0.000
O4 0.000 -0.769 0.000

Atom - Atom Distances (Å)
  K1 K2 O3 O4
K14.51582.38522.3852
K24.51582.38522.3852
O32.38522.38521.5378
O42.38522.38521.5378

picture of dipotassium dioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
K1 O3 K2 142.389 K1 O4 K2 142.389
O3 K1 O4 37.611 O3 K2 O4 37.611
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.822      
2 K 0.822      
3 O -0.822      
4 O -0.822      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.011 0.000 0.000
y 0.000 -40.283 0.000
z 0.000 0.000 4.871
Traceless
 xyz
x -17.305 0.000 0.000
y 0.000 -25.213 0.000
z 0.000 0.000 42.518
Polar
3z2-r285.036
x2-y25.272
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.920 0.000 0.000
y 0.000 5.976 0.000
z 0.000 0.000 7.382


<r2> (average value of r2) Å2
<r2> 217.851
(<r2>)1/2 14.760