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/cc-pV(T+d)Z

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/cc-pV(T+d)Z
 hartrees
Energy at 0K-876.471197
Energy at 298.15K-876.472100
HF Energy-876.471197
Nuclear repulsion energy131.689911
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/cc-pV(T+d)Z
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' 1236 1227 87.37      
2 A' 482 478 139.65      
3 A' 290 288 3.29      

Unscaled Zero Point Vibrational Energy (zpe) 1003.9 cm-1
Scaled (by 0.9926) Zero Point Vibrational Energy (zpe) 996.4 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/cc-pV(T+d)Z
ABC
1.09750 0.14580 0.12870

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pV(T+d)Z

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.833 0.000
O2 1.479 0.865 0.000
Cl3 -0.696 -1.142 0.000

Atom - Atom Distances (Å)
  P1 O2 Cl3
P11.47902.0942
O21.47902.9594
Cl32.09422.9594

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 110.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.493      
2 O -0.325      
3 Cl -0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.518 0.704 0.000 1.673
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.700 -1.596 0.000
y -1.596 -29.696 0.000
z 0.000 0.000 -28.540
Traceless
 xyz
x -4.581 -1.596 0.000
y -1.596 1.424 0.000
z 0.000 0.000 3.158
Polar
3z2-r26.315
x2-y2-4.003
xy-1.596
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.419 1.501 0.000
y 1.501 7.061 0.000
z 0.000 0.000 3.670


<r2> (average value of r2) Å2
<r2> 83.438
(<r2>)1/2 9.134