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All results from a given calculation for FOOF (Perfluoroperoxide)

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-349.512707
Energy at 298.15K-349.514122
HF Energy-349.512707
Nuclear repulsion energy122.707283
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 PBEPBE/6-31G*
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 1283 1265 41.21      
2 A 713 703 39.80      
3 A 444 437 9.07      
4 A 192 189 0.60      
5 B 696 686 134.13      
6 B 513 506 41.65      

Unscaled Zero Point Vibrational Energy (zpe) 1920.3 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 1892.9 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 PBEPBE/6-31G*
ABC
0.69026 0.16269 0.14256

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.542 1.454 -0.499
O2 0.542 0.291 0.561
O3 -0.542 -0.291 0.561
F4 -0.542 -1.454 -0.499

Atom - Atom Distances (Å)
  F1 O2 O3 F4
F11.57392.31193.1037
O21.57391.23062.3119
O32.31191.23061.5739
F43.10372.31191.5739

picture of Perfluoroperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 O2 O3 110.451 O2 O3 F4 110.451
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.172      
2 O 0.172      
3 O 0.172      
4 F -0.172      


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 1.226 1.226
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.436 -0.844 0.000
y -0.844 -21.265 0.000
z 0.000 0.000 -18.765
Traceless
 xyz
x 0.579 -0.844 0.000
y -0.844 -2.164 0.000
z 0.000 0.000 1.586
Polar
3z2-r23.171
x2-y21.829
xy-0.844
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.992 1.262 0.000
y 1.262 4.110 0.000
z 0.000 0.000 2.160


<r2> (average value of r2) Å2
<r2> 71.310
(<r2>)1/2 8.445