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 PF2 (Phosphorus difluoride)

using model chemistry: MP2=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-540.465824
Energy at 298.15K 
HF Energy-539.752967
Nuclear repulsion energy107.592291
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 MP2=FULL/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 A1 866 824 129.24 7.65 0.47 0.64
2 A1 366 348 8.11 0.66 0.53 0.70
3 B2 844 803 184.77 6.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1037.8 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 987.4 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 MP2=FULL/aug-cc-pVTZ
ABC
0.90328 0.30784 0.22960

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.570
F2 0.000 1.200 -0.475
F3 0.000 -1.200 -0.475

Atom - Atom Distances (Å)
  P1 F2 F3
P11.59211.5921
F21.59212.4010
F31.59212.4010

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 97.879
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability