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All results from a given calculation for PF2 (Phosphorus difluoride)

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-537.114071
Energy at 298.15K 
HF Energy-536.818502
Nuclear repulsion energy103.047940
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 MP4/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 843 817        
2 A1 332 322        
3 B2 862 836        

Unscaled Zero Point Vibrational Energy (zpe) 1018.3 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 987.5 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 MP4/3-21G
ABC
0.82794 0.28253 0.21065

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.596
F2 0.000 1.253 -0.497
F3 0.000 -1.253 -0.497

Atom - Atom Distances (Å)
  P1 F2 F3
P11.66241.6624
F21.66242.5062
F31.66242.5062

picture of Phosphorus difluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 P1 F3 97.843
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability