Phosphorus trifluorodichloride
Phosphorus trifluorodichloride is a chemical compound with the chemical formula. It is a toxic colorless gas with a disagreeable odor, and it turns into a liquid at −8 °C. The covalent molecule has trigonal bipyramidal molecular geometry. The central phosphorus atom has sp3d hybridization, and the molecule has an asymmetric charge distribution.
Phosphorus trifluorodichloride is formed by mixing phosphorus trifluoride with chlorine gas:
The P-F bond length is 154.6 pm for equatorial position and 159.3 pm for the axial position and the P-Cl bond length is 200.4 pm. The chlorine atoms are in equatorial positions in the molecule.