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: LSDA/aug-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 LSDA/aug-cc-pVTZ
 hartrees
Energy at 0K-348.376522
Energy at 298.15K-348.378060
HF Energy-348.376522
Nuclear repulsion energy125.310328
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 LSDA/aug-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 1401 1388 64.30      
2 A 745 738 53.27      
3 A 474 469 15.80      
4 A 211 209 0.72      
5 B 709 702 180.54      
6 B 542 537 71.89      

Unscaled Zero Point Vibrational Energy (zpe) 2040.9 cm-1
Scaled (by 0.9906) Zero Point Vibrational Energy (zpe) 2021.7 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 LSDA/aug-cc-pVTZ
ABC
0.71321 0.16956 0.14816

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.523 1.430 -0.492
O2 0.523 0.281 0.554
O3 -0.523 -0.281 0.554
F4 -0.523 -1.430 -0.492

Atom - Atom Distances (Å)
  F1 O2 O3 F4
F11.55432.26203.0462
O21.55431.18732.2620
O32.26201.18731.5543
F43.04622.26201.5543

picture of Perfluoroperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 O2 O3 110.476 O2 O3 F4 110.476
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.224      
2 O 0.224      
3 O 0.224      
4 F -0.224      


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 1.626 1.626
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.372 -1.051 0.000
y -1.051 -22.972 0.000
z 0.000 0.000 -19.671
Traceless
 xyz
x 0.950 -1.051 0.000
y -1.051 -2.951 0.000
z 0.000 0.000 2.001
Polar
3z2-r24.002
x2-y22.600
xy-1.051
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.850 1.257 0.000
y 1.257 5.181 0.000
z 0.000 0.000 3.050


<r2> (average value of r2) Å2
<r2> 69.781
(<r2>)1/2 8.354