Phosphorus trifluorodichloride

Phosphorus trifluorodichloride
Identifiers
CAS Number	13454-99-4 [[1]];
ChemSpider	10331606;
PubChem CID	23237515;
CompTox Dashboard (EPA)	DTXSID601337094 ;
	InChI InChI=1S/Cl2F3P/c1-6(2,3,4)5 Key: PYMHWNZNAIBFHU-UHFFFAOYSA-N;
	SMILES FP(F)(Cl)(Cl)Cl;
Properties
Chemical formula	Cl2F3P
Molar mass	158.87 g·mol−1
Appearance	Colorless gas
Related compounds
Other cations	antimony trifluorodichloride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Phosphorus trifluorodichloride is a chemical compound with the chemical formula PF₃Cl₂. The covalent molecule trigonal bipyramidal molecular geometry. The central phosphorus atom has sp³d hybridization, and the molecule has an asymmetric charge distribution. It appears as a colorless gas with a disagreeable odor, and it turns into a liquid at -8 °C.

Phosphorus trifluorodichloride is formed by mixing phosphorus trifluoride with chlorine PF₃ + Cl₂ → PF₃Cl₂^[2]

The P-F bond length is 1.546 Å for equatorial position and 1.593 for the axial position and the P-Cl bond length is 2.004 Å. The chlorine atoms are in equatorial positions in the molecule.^[2]

References

^ Yaws, Carl L. (2014). "Thermal Conductivity of Gas – Inorganic Compounds". Transport Properties of Chemicals and Hydrocarbons. pp. 384–388. doi:10.1016/B978-0-323-28658-9.00006-8. ISBN 978-0-323-28658-9.
^ ^a ^b French, Richard J.; Hedberg, Kenneth; Shreeve, Jeanne M.; Gupta, Krishna D. (August 1985). "Dichlorotrifluorophosphorane (PCl₂F₃): molecular structure by gas-phase electron diffraction and quadratic force field". Inorganic Chemistry. 24 (18): 2774–2777. doi:10.1021/ic00212a014.

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[1] Yaws, Carl L. (2014). "Thermal Conductivity of Gas – Inorganic Compounds". Transport Properties of Chemicals and Hydrocarbons. pp. 384–388. doi:10.1016/B978-0-323-28658-9.00006-8. ISBN 978-0-323-28658-9.

[fr-2] French, Richard J.; Hedberg, Kenneth; Shreeve, Jeanne M.; Gupta, Krishna D. (August 1985). "Dichlorotrifluorophosphorane (PCl₂F₃): molecular structure by gas-phase electron diffraction and quadratic force field". Inorganic Chemistry. 24 (18): 2774–2777. doi:10.1021/ic00212a014.

[2]