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All results from a given calculation for FOOF (Perfluoroperoxide)

using model chemistry: mPW1PW91/TZVP

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/TZVP
 hartrees
Energy at 0K-349.864316
Energy at 298.15K-349.865929
HF Energy-349.864316
Nuclear repulsion energy127.424920
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/TZVP
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 1176 1122 21.83      
2 A 729 695 82.73      
3 A 488 466 20.84      
4 A 235 224 0.32      
5 B 779 743 153.58      
6 B 586 559 67.23      

Unscaled Zero Point Vibrational Energy (zpe) 1996.7 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 1904.8 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/TZVP
ABC
0.73921 0.17820 0.15670

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.553 1.365 -0.478
O2 0.553 0.276 0.537
O3 -0.553 -0.276 0.537
F4 -0.553 -1.365 -0.478

Atom - Atom Distances (Å)
  F1 O2 O3 F4
F11.48902.22332.9452
O21.48901.23512.2233
O32.22331.23511.4890
F42.94522.22331.4890

picture of Perfluoroperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 O2 O3 109.052 O2 O3 F4 109.052
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.156      
2 O 0.156      
3 O 0.156      
4 F -0.156      


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 1.161 1.161
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.139 -0.858 0.000
y -0.858 -21.857 0.000
z 0.000 0.000 -19.626
Traceless
 xyz
x 0.603 -0.858 0.000
y -0.858 -1.974 0.000
z 0.000 0.000 1.371
Polar
3z2-r22.743
x2-y21.718
xy-0.858
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.017 1.134 0.000
y 1.134 3.871 0.000
z 0.000 0.000 2.269


<r2> (average value of r2) Å2
<r2> 66.692
(<r2>)1/2 8.167