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All results from a given calculation for PCl5 (Phosphorus pentachloride)

using model chemistry: QCISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-2625.774323
Energy at 298.15K-2625.774631
HF Energy-2625.401229
Nuclear repulsion energy720.780293
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/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' 275 267 0.00      
2 A1' 245 237 0.00      
3 A2" 388 376 144.82      
4 A2" 214 208 9.40      
5 E' 435 422 75.54      
5 E' 435 422 75.54      
6 E' 189 183 5.93      
6 E' 189 183 5.93      
7 E' 53 52 0.23      
7 E' 53 52 0.23      
8 E" 184 178 0.00      
8 E" 184 178 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 1421.8 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 1378.0 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/3-21G
ABC
0.03117 0.02543 0.02543

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.000
Cl2 0.000 2.271 0.000
Cl3 1.966 -1.135 0.000
Cl4 -1.966 -1.135 0.000
Cl5 0.000 0.000 2.369
Cl6 0.000 0.000 -2.369

Atom - Atom Distances (Å)
  P1 Cl2 Cl3 Cl4 Cl5 Cl6
P12.27052.27052.27052.36912.3691
Cl22.27053.93263.93263.28153.2815
Cl32.27053.93263.93263.28153.2815
Cl42.27053.93263.93263.28153.2815
Cl52.36913.28153.28153.28154.7383
Cl62.36913.28153.28153.28154.7383

picture of Phosphorus pentachloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 P1 Cl3 120.000 Cl2 P1 Cl4 120.000
Cl2 P1 Cl5 90.000 Cl2 P1 Cl6 90.000
Cl3 P1 Cl4 120.000 Cl3 P1 Cl5 90.000
Cl3 P1 Cl6 90.000 Cl4 P1 Cl5 90.000
Cl4 P1 Cl6 90.000 Cl5 P1 Cl6 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability