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Experimental data for Cl3PO (Phosphoryl chloride)

22 02 02 11 45
Other names
Fosforoxychlorid; Oxychlorid fosforecny; Phosphoric chloride; Phosphoric trichloride; Phosphorous oxychloride; Phosphorus chloride oxide (POCl3); Phosphorus oxide chloride; Phosphorus oxide trichloride; Phosphorus oxychloride; Phosphorus oxytrichloride; Phosphorus(V) trichloride oxide; Phosphoryl chloride; Phosphoryl trichloride; Trichlorophosphine oxide; Trichlorophosphorus oxide;
INChI INChIKey SMILES IUPAC name
InChI=1S/Cl3OP/c1-5(2,3)4 XHXFXVLFKHQFAL-UHFFFAOYSA-N O=P(Cl)(Cl)Cl Phosphoryl trichloride
State Conformation
1A1 C3V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation -559.80 1.70 kJ mol-1 JANAF
Hfg(0K) enthalpy of formation -554.20 1.70 kJ mol-1 JANAF
Entropy (298.15K) entropy 325.45   J K-1 mol-1 JANAF
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 17.88   kJ mol-1 JANAF
Heat Capacity (298.15K) heat capacity 84.91   J K-1 mol-1 webbook
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 A1 1322   Shim      
2 A1 481   Shim      
3 A1 266   Shim      
4 E 590   Shim      
5 E 333   Shim      
6 E 187   Shim      

vibrational zero-point energy: 2144.5 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for Cl3PO (Phosphoryl chloride).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.06724 0.06546 0.04831 1983Car/Cra:306

Calculated rotational constants for Cl3PO (Phosphoryl chloride).
Product of moments of inertia moments of inertia
2.252975E+07amu3Å6   1.03163112732888E-112gm3 cm6
Geometric Data
picture of Phosphoryl chloride

Point Group C3v


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rPO 1.455   1 2 1976Hellwege(II/7)
rPCl 1.989   1 3 1976Hellwege(II/7)
aClPCl 103.7 3 1 4 1976Hellwege(II/7)
aOPCl 114.76 2 1 3 1976Hellwege(II/7) by symmetry

Cartesians
Atom x (Å) y (Å) z (Å)
P1 0.0000 0.0000 0.4385
O2 0.0000 0.0000 1.8935
Cl3 0.0000 1.7913 -0.4260
Cl4 1.5513 -0.8957 -0.4260
Cl5 -1.5513 -0.8957 -0.4260

Atom - Atom Distances bond lengths
Distances in Å
  P1 O2 Cl3 Cl4 Cl5
P1   1.45501.98901.98901.9890
O2 1.4550   2.93062.93062.9306
Cl3 1.98902.9306   3.10273.1027
Cl4 1.98902.93063.1027   3.1027
Cl5 1.98902.93063.10273.1027  

Calculated geometries for Cl3PO (Phosphoryl chloride).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
O2 P1 Cl3 115.760 O2 P1 Cl4 115.760
O2 P1 Cl5 115.760 Cl3 P1 Cl4 102.514
Cl3 P1 Cl5 102.514 Cl4 P1 Cl5 102.514

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
O=P 1
P-Cl 3

Connectivity
Atom 1 Atom 2
P1 O2
P1 Cl3
P1 Cl4
P1 Cl5
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
11.500 0.100 11.890 1.410 webbook

Electron Affinity (eV)
Electron Affinity unc. reference
0.200   webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A1 C3v True       2.540 1974Hel/Hel(II/6) MW ± 0.04 D μ0 C3v 1 1
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for Cl3PO (Phosphoryl chloride).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A1 C3v True       C3v 1 1

Calculated electric quadrupole moments for Cl3PO (Phosphoryl chloride).

References
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squib reference DOI
1974Hel/Hel(II/6) Hellwege, KH and AM Hellwege (eds.). Landolt-Bornstein: Group II: Volume 6 Molecular Constants from Microwave, Molecular Beam, and Electron Spin Resonance Spectroscopy Springer-Verlag. Berlin. 1974. 10.1007/b19951 
1976Hellwege(II/7) Hellwege, KH and AM Hellwege (ed.). Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 7: Structure Data of Free Polyatomic Molecules. Springer-Verlag. Berlin. 1976.  
1983Car/Cra:306 Carpenter, J.; Crane, R.; Smith, J. "The Millimeter Wave Spectrum of Phosphorus Oxychloride." Journal of Molecular Spectroscopy. 101, 306-318 (1983) 10.1016/0022-2852(83)90136-4
JANAF Chase, M.W., Jr.; Davies, C.A.; Downey, J.R., Jr.; Frurip, D.J.; McDonald, R.A.; Syverud, A.N., JANAF Thermochemical Tables (Third Edition), J. Phys. Chem. Ref. Data,Suppl. 1, 1985, 14, 1.  
Shim Shimanouchi, T. , Tables of Molecular Vibrational Frequencies, Consolidated Volu 10.6028/NBS.NSRDS.39
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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