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 PF6 (Hexafluorophosphate neutral)

using model chemistry: QCISD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-938.928497
Energy at 298.15K 
HF Energy-937.398458
Nuclear repulsion energy532.831221
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 QCISD/6-31G(2df,p)
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 950 900 252.72      
2 A1 773 733 19.30      
3 A1 630 597 2.70      
4 A1 553 524 87.81      
5 A1 424 402 3.92      
6 A1 305 289 0.01      
7 A2 475 450 0.00      
8 A2 319 303 0.00      
9 B1 1063 1007 307.25      
10 B1 544 515 31.63      
11 B1 458 433 2.12      
12 B2 922 873 2.60      
13 B2 516 488 10.14      
14 B2 224 213 0.02      
15 B2 868i 822i 1056.60      

Unscaled Zero Point Vibrational Energy (zpe) 3643.4 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 3451.7 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 QCISD/6-31G(2df,p)
ABC
0.09279 0.08273 0.08162

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.165
F2 0.000 1.215 1.122
F3 0.000 -1.215 1.122
F4 1.558 0.000 0.053
F5 -1.558 0.000 0.053
F6 0.000 0.937 -1.313
F7 0.000 -0.937 -1.313

Atom - Atom Distances (Å)
  P1 F2 F3 F4 F5 F6 F7
P11.54691.54691.56191.56191.74971.7497
F21.54692.42982.24632.24632.45103.2498
F31.54692.42982.24632.24633.24982.4510
F41.56192.24632.24633.11602.27432.2743
F51.56192.24632.24633.11602.27432.2743
F61.74972.45103.24982.27432.27431.8742
F71.74973.24982.45102.27432.27431.8742

picture of Hexafluorophosphate neutral state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 P1 F3 103.510 F2 P1 F4 92.528
F2 P1 F5 92.528 F2 P1 F6 95.862
F2 P1 F7 160.628 F3 P1 F4 92.528
F3 P1 F5 92.528 F3 P1 F6 160.628
F3 P1 F7 95.862 F4 P1 F5 171.829
F4 P1 F6 86.551 F4 P1 F7 86.551
F5 P1 F6 86.551 F5 P1 F7 86.551
F6 P1 F7 64.766
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability