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: PBEPBEultrafine/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/Def2TZVPP
 hartrees
Energy at 0K-540.826524
Energy at 298.15K 
HF Energy-540.826524
Nuclear repulsion energy106.258413
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 PBEPBEultrafine/Def2TZVPP
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 815 815 103.66 7.10 0.27 0.43
2 A1 335 335 6.00 1.19 0.62 0.77
3 B2 802 802 163.22 6.30 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 976.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 976.5 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 PBEPBEultrafine/Def2TZVPP
ABC
0.90947 0.29505 0.22278

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.568
F2 0.000 1.226 -0.474
F3 0.000 -1.226 -0.474

Atom - Atom Distances (Å)
  P1 F2 F3
P11.60931.6093
F21.60932.4525
F31.60932.4525

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 99.275
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.426      
2 F -0.213      
3 F -0.213      


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 0.993 0.993
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.359 0.000 0.000
y 0.000 -23.505 0.000
z 0.000 0.000 -22.159
Traceless
 xyz
x 0.473 0.000 0.000
y 0.000 -1.246 0.000
z 0.000 0.000 0.773
Polar
3z2-r21.546
x2-y21.146
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.911 0.000 0.000
y 0.000 3.747 0.000
z 0.000 0.000 3.322


<r2> (average value of r2) Å2
<r2> 50.116
(<r2>)1/2 7.079