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All results from a given calculation for FOOF (Perfluoroperoxide)

using model chemistry: HF/3-21G*

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/3-21G*
 hartrees
Energy at 0K-346.372742
Energy at 298.15K-346.374320
HF Energy-346.372742
Nuclear repulsion energy125.744839
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/3-21G*
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 1205 1088 5.84      
2 A 1054 952 1.87      
3 A 438 395 0.79      
4 A 137 124 0.33      
5 B 1190 1074 14.77      
6 B 577 520 5.84      

Unscaled Zero Point Vibrational Energy (zpe) 2300.1 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 2076.0 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/3-21G*
ABC
0.67448 0.18355 0.16217

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.679 1.233 -0.486
O2 0.679 0.241 0.547
O3 -0.679 -0.241 0.547
F4 -0.679 -1.233 -0.486

Atom - Atom Distances (Å)
  F1 O2 O3 F4
F11.43222.25462.8146
O21.43221.44042.2546
O32.25461.44041.4322
F42.81462.25461.4322

picture of Perfluoroperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 O2 O3 103.412 O2 O3 F4 103.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.090      
2 O 0.090      
3 O 0.090      
4 F -0.090      


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 0.372 0.372
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.631 -0.292 0.000
y -0.292 -19.983 0.000
z 0.000 0.000 -19.398
Traceless
 xyz
x 0.060 -0.292 0.000
y -0.292 -0.469 0.000
z 0.000 0.000 0.409
Polar
3z2-r20.819
x2-y20.353
xy-0.292
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.745 1.098 0.000
y 1.098 2.556 0.000
z 0.000 0.000 1.672


<r2> (average value of r2) Å2
<r2> 65.280
(<r2>)1/2 8.080