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: PBEPBE/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 PBEPBE/STO-3G
 hartrees
Energy at 0K-866.435460
Energy at 298.15K-866.436280
HF Energy-866.435460
Nuclear repulsion energy125.617405
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 PBEPBE/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' 1184 1081 24.14      
2 A' 495 452 65.94      
3 A' 296 270 5.42      

Unscaled Zero Point Vibrational Energy (zpe) 987.2 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 901.9 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 PBEPBE/STO-3G
ABC
0.87311 0.13801 0.11917

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.918 0.000
O2 1.547 0.787 0.000
Cl3 -0.728 -1.180 0.000

Atom - Atom Distances (Å)
  P1 O2 Cl3
P11.55242.2202
O21.55243.0070
Cl32.22023.0070

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 104.301
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.574      
2 O -0.238      
3 Cl -0.336      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.347 2.934 0.000 2.954
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.838 -1.668 0.000
y -1.668 -27.791 0.000
z 0.000 0.000 -25.181
Traceless
 xyz
x -3.352 -1.668 0.000
y -1.668 -0.281 0.000
z 0.000 0.000 3.633
Polar
3z2-r27.267
x2-y2-2.047
xy-1.668
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.649 1.451 0.000
y 1.451 3.632 0.000
z 0.000 0.000 0.923


<r2> (average value of r2) Å2
<r2> 86.638
(<r2>)1/2 9.308