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: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-349.714784
Energy at 298.15K-349.716413
HF Energy-349.714784
Nuclear repulsion energy128.199580
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 B1B95/6-31G**
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 1138 1086 6.63      
2 A 766 731 61.40      
3 A 502 480 4.96      
4 A 220 210 0.33      
5 B 831 793 123.32      
6 B 604 577 29.85      

Unscaled Zero Point Vibrational Energy (zpe) 2030.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1938.3 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 B1B95/6-31G**
ABC
0.73181 0.18378 0.16130

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.573 1.322 -0.478
O2 0.573 0.268 0.538
O3 -0.573 -0.268 0.538
F4 -0.573 -1.322 -0.478

Atom - Atom Distances (Å)
  F1 O2 O3 F4
F11.46342.20812.8821
O21.46341.26632.2081
O32.20811.26631.4634
F42.88212.20811.4634

picture of Perfluoroperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 O2 O3 107.768 O2 O3 F4 107.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.155      
2 O 0.155      
3 O 0.155      
4 F -0.155      


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 0.756 0.756
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.471 -0.498 0.000
y -0.498 -20.337 0.000
z 0.000 0.000 -18.994
Traceless
 xyz
x 0.194 -0.498 0.000
y -0.498 -1.105 0.000
z 0.000 0.000 0.911
Polar
3z2-r21.821
x2-y20.866
xy-0.498
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.913 0.988 0.000
y 0.988 3.236 0.000
z 0.000 0.000 2.023


<r2> (average value of r2) Å2
<r2> 64.770
(<r2>)1/2 8.048