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All results from a given calculation for FOOF (Perfluoroperoxide)

using model chemistry: mPW1PW91/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-349.858816
Energy at 298.15K-349.860464
HF Energy-349.858816
Nuclear repulsion energy128.188588
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/cc-pVTZ
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 1168 1121 13.50      
2 A 737 707 75.68      
3 A 503 482 15.91      
4 A 237 227 0.26      
5 B 798 765 151.33      
6 B 602 578 56.80      

Unscaled Zero Point Vibrational Energy (zpe) 2022.4 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 1939.9 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/cc-pVTZ
ABC
0.74166 0.18160 0.15952

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.557 1.345 -0.476
O2 0.557 0.272 0.536
O3 -0.557 -0.272 0.536
F4 -0.557 -1.345 -0.476

Atom - Atom Distances (Å)
  F1 O2 O3 F4
F11.47472.20942.9116
O21.47471.24032.2094
O32.20941.24031.4747
F42.91162.20941.4747

picture of Perfluoroperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 O2 O3 108.626 O2 O3 F4 108.626
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.146      
2 O 0.146      
3 O 0.146      
4 F -0.146      


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 1.035 1.035
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.826 -0.736 0.000
y -0.736 -21.248 0.000
z 0.000 0.000 -19.314
Traceless
 xyz
x 0.455 -0.736 0.000
y -0.736 -1.678 0.000
z 0.000 0.000 1.224
Polar
3z2-r22.447
x2-y21.422
xy-0.736
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.004 1.068 0.000
y 1.068 3.618 0.000
z 0.000 0.000 2.191


<r2> (average value of r2) Å2
<r2> 65.550
(<r2>)1/2 8.096