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All results from a given calculation for FOOF (Perfluoroperoxide)

using model chemistry: CID/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 CID/3-21G
 hartrees
Energy at 0K-346.829624
Energy at 298.15K-346.831079
HF Energy-346.369487
Nuclear repulsion energy122.620289
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 CID/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 1049 977 5.30      
2 A 938 874 0.13      
3 A 400 373 0.32      
4 A 141 131 0.29      
5 B 1049 977 9.42      
6 B 516 481 3.98      

Unscaled Zero Point Vibrational Energy (zpe) 2046.2 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 1906.2 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 CID/3-21G
ABC
0.64459 0.17392 0.15407

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.692 1.272 -0.496
O2 0.692 0.244 0.558
O3 -0.692 -0.244 0.558
F4 -0.692 -1.272 -0.496

Atom - Atom Distances (Å)
  F1 O2 O3 F4
F11.47292.30822.8965
O21.47291.46782.3082
O32.30821.46781.4729
F42.89652.30821.4729

picture of Perfluoroperoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 O2 O3 103.420 O2 O3 F4 103.420
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability