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All results from a given calculation for FOOF (Perfluoroperoxide)

using model chemistry: HF/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-348.247377
Energy at 298.15K-348.249280
HF Energy-348.247377
Nuclear repulsion energy134.290164
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/6-31G(2df,p)
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 1179 1068 0.59      
2 A 1163 1053 33.73      
3 A 575 520 0.24      
4 A 221 200 0.30      
5 B 1155 1046 66.27      
6 B 733 664 9.13      

Unscaled Zero Point Vibrational Energy (zpe) 2512.1 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 2274.7 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 HF/6-31G(2df,p)
ABC
0.78869 0.20604 0.18104

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.599 1.199 -0.456
O2 0.599 0.257 0.513
O3 -0.599 -0.257 0.513
F4 -0.599 -1.199 -0.456

Atom - Atom Distances (Å)
  F1 O2 O3 F4
F11.35242.11962.6805
O21.35241.30252.1196
O32.11961.30251.3524
F42.68052.11961.3524

picture of Perfluoroperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 O2 O3 105.939 O2 O3 F4 105.939
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.229      
2 O 0.229      
3 O 0.229      
4 F -0.229      


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 0.387 0.387
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.520 -0.192 0.000
y -0.192 -19.846 0.000
z 0.000 0.000 -19.286
Traceless
 xyz
x 0.046 -0.192 0.000
y -0.192 -0.443 0.000
z 0.000 0.000 0.397
Polar
3z2-r20.794
x2-y20.326
xy-0.192
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.007 0.667 0.000
y 0.667 2.773 0.000
z 0.000 0.000 2.124


<r2> (average value of r2) Å2
<r2> 59.295
(<r2>)1/2 7.700