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 FOOF (Perfluoroperoxide)

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-349.753382
Energy at 298.15K-349.754603
HF Energy-349.753382
Nuclear repulsion energy117.031226
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 BLYP/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 981 974 16.96      
2 A 660 655 34.97      
3 A 396 393 2.70      
4 A 168 167 0.94      
5 B 679 673 102.22      
6 B 450 447 11.40      

Unscaled Zero Point Vibrational Energy (zpe) 1666.4 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 1653.7 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 BLYP/6-31G
ABC
0.64349 0.14680 0.12948

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.574 1.528 -0.515
O2 0.574 0.311 0.579
O3 -0.574 -0.311 0.579
F4 -0.574 -1.528 -0.515

Atom - Atom Distances (Å)
  F1 O2 O3 F4
F11.63632.42783.2641
O21.63631.30552.4278
O32.42781.30551.6363
F43.26412.42781.6363

picture of Perfluoroperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 O2 O3 110.738 O2 O3 F4 110.738
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.133      
2 O 0.133      
3 O 0.133      
4 F -0.133      


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 1.128 1.128
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.054 -1.018 0.000
y -1.018 -21.716 0.000
z 0.000 0.000 -19.160
Traceless
 xyz
x 0.384 -1.018 0.000
y -1.018 -2.108 0.000
z 0.000 0.000 1.725
Polar
3z2-r23.450
x2-y21.661
xy-1.018
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.783 1.554 0.000
y 1.554 4.347 0.000
z 0.000 0.000 1.923


<r2> (average value of r2) Å2
<r2> 77.580
(<r2>)1/2 8.808