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/STO-3G

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/STO-3G
 hartrees
Energy at 0K-865.320697
Energy at 298.15K-865.321679
HF Energy-865.320697
Nuclear repulsion energy130.959538
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/STO-3G
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' 1366 1115 36.85      
2 A' 591 483 111.96      
3 A' 365 298 8.77      

Unscaled Zero Point Vibrational Energy (zpe) 1160.6 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 947.6 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/STO-3G
ABC
0.91630 0.15162 0.13009

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.896 0.000
O2 1.475 0.723 0.000
Cl3 -0.694 -1.131 0.000

Atom - Atom Distances (Å)
  P1 O2 Cl3
P11.48552.1423
O21.48552.8533
Cl32.14232.8533

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 102.203
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.774      
2 O -0.361      
3 Cl -0.413      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.009 3.388 0.000 3.388
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.108 -2.032 0.000
y -2.032 -28.313 0.000
z 0.000 0.000 -25.025
Traceless
 xyz
x -4.438 -2.032 0.000
y -2.032 -0.247 0.000
z 0.000 0.000 4.685
Polar
3z2-r29.370
x2-y2-2.794
xy-2.032
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.538 1.132 0.000
y 1.132 3.112 0.000
z 0.000 0.000 0.879


<r2> (average value of r2) Å2
<r2> 81.139
(<r2>)1/2 9.008