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 OPCl (Phosphorus oxychloride)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-875.192535
Energy at 298.15K-875.193552
HF Energy-875.192535
Nuclear repulsion energy135.238177
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 HF/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 A' 1457 1321 175.84      
2 A' 531 482 230.39      
3 A' 348 315 5.68      

Unscaled Zero Point Vibrational Energy (zpe) 1168.1 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 1058.7 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 HF/Def2TZVPP
ABC
1.13634 0.15413 0.13572

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.825 0.000
O2 1.428 0.830 0.000
Cl3 -0.672 -1.118 0.000

Atom - Atom Distances (Å)
  P1 O2 Cl3
P11.42762.0560
O21.42762.8644
Cl32.05602.8644

picture of Phosphorus oxychloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 P1 Cl3 109.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.756      
2 O -0.488      
3 Cl -0.268      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.981 0.900 0.000 2.176
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.056 -1.964 0.000
y -1.964 -30.044 0.000
z 0.000 0.000 -28.210
Traceless
 xyz
x -5.929 -1.964 0.000
y -1.964 1.589 0.000
z 0.000 0.000 4.340
Polar
3z2-r28.680
x2-y2-5.012
xy-1.964
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.829 1.164 0.000
y 1.164 6.240 0.000
z 0.000 0.000 3.557


<r2> (average value of r2) Å2
<r2> 80.386
(<r2>)1/2 8.966