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 PCl5 (Phosphorus pentachloride)

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-2642.101221
Energy at 298.15K-2642.102681
Nuclear repulsion energy801.019846
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 B3PW91/6-31G(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' 390 375 0.00      
2 A1' 286 275 0.00      
3 A2" 471 453 330.97      
4 A2" 297 285 5.95      
5 E' 577 555 173.61      
5 E' 577 555 173.62      
6 E' 270 260 2.51      
6 E' 270 260 2.51      
7 E' 89 85 0.43      
7 E' 89 85 0.43      
8 E" 258 248 0.00      
8 E" 258 248 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 1916.3 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 1842.3 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 B3PW91/6-31G(2df,p)
ABC
0.03864 0.03135 0.03135

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.000
Cl2 0.000 2.039 0.000
Cl3 1.766 -1.020 0.000
Cl4 -1.766 -1.020 0.000
Cl5 0.000 0.000 2.138
Cl6 0.000 0.000 -2.138

Atom - Atom Distances (Å)
  P1 Cl2 Cl3 Cl4 Cl5 Cl6
P12.03922.03922.03922.13772.1377
Cl22.03923.53203.53202.95442.9544
Cl32.03923.53203.53202.95442.9544
Cl42.03923.53203.53202.95442.9544
Cl52.13772.95442.95442.95444.2754
Cl62.13772.95442.95442.95444.2754

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
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.478      
2 Cl -0.027      
3 Cl -0.027      
4 Cl -0.027      
5 Cl -0.198      
6 Cl -0.198      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -71.877 0.000 0.000
y 0.000 -71.877 0.000
z 0.000 0.000 -78.800
Traceless
 xyz
x 3.462 0.000 0.000
y 0.000 3.462 0.000
z 0.000 0.000 -6.924
Polar
3z2-r2-13.847
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.669 0.000 0.000
y 0.000 11.670 0.000
z 0.000 0.000 13.308


<r2> (average value of r2) Å2
<r2> 413.788
(<r2>)1/2 20.342