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All results from a given calculation for FOOF (Perfluoroperoxide)

using model chemistry: mPW1PW91/6-31G(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 mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-349.735485
Energy at 298.15K-349.737151
HF Energy-349.735485
Nuclear repulsion energy129.094941
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 mPW1PW91/6-31G(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 1150 1098 6.17      
2 A 762 727 60.44      
3 A 517 494 6.71      
4 A 227 217 0.21      
5 B 831 793 122.46      
6 B 621 593 36.78      

Unscaled Zero Point Vibrational Energy (zpe) 2053.9 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 1960.9 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 mPW1PW91/6-31G(2df,p)
ABC
0.74011 0.18665 0.16351

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.568 1.312 -0.476
O2 0.568 0.270 0.536
O3 -0.568 -0.270 0.536
F4 -0.568 -1.312 -0.476

Atom - Atom Distances (Å)
  F1 O2 O3 F4
F11.45262.19462.8593
O21.45261.25792.1946
O32.19461.25791.4526
F42.85932.19461.4526

picture of Perfluoroperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 O2 O3 107.914 O2 O3 F4 107.914
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.160      
2 O 0.160      
3 O 0.160      
4 F -0.160      


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 0.728 0.728
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.352 -0.451 0.000
y -0.451 -20.226 0.000
z 0.000 0.000 -18.948
Traceless
 xyz
x 0.235 -0.451 0.000
y -0.451 -1.075 0.000
z 0.000 0.000 0.841
Polar
3z2-r21.681
x2-y20.873
xy-0.451
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.197 0.936 0.000
y 0.936 3.451 0.000
z 0.000 0.000 2.287


<r2> (average value of r2) Å2
<r2> 63.976
(<r2>)1/2 7.998