Search results
Results From The WOW.Com Content Network
Phosphorus trichloride is an inorganic compound with the chemical formula PCl 3. A colorless liquid when pure, it is an important industrial chemical , being used for the manufacture of phosphites and other organophosphorus compounds .
Thiophosphoryl chloride has tetrahedral molecular geometry and C 3v molecular symmetry, with the structure S=PCl 3.According to gas electron diffraction, the phosphorus–sulfur bond length is 189 pm and the phosphorus–chlorine bond length is 201 pm, while the Cl−P−Cl bond angle is 102°.
This is one geometry for which the bond angles surrounding the central atom are not identical (see also pentagonal bipyramid), because there is no geometrical arrangement with five terminal atoms in equivalent positions. Examples of this molecular geometry are phosphorus pentafluoride (PF 5), and phosphorus pentachloride (PCl 5) in the gas ...
This would result in the geometry of a regular tetrahedron with each bond angle equal to arccos(− 1 / 3 ) ≈ 109.5°. However, the three hydrogen atoms are repelled by the electron lone pair in a way that the geometry is distorted to a trigonal pyramid (regular 3-sided pyramid) with bond angles of 107°.
The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet for this chemical from a reliable source such as SIRI, and follow its directions.
In contrast, the solid-angle concept derives both bond length and the perimeter from empirical solid state crystal structures. [ 5 ] [ 6 ] There are advantages to each system. If the geometry of a ligand is known, either through crystallography or computations, an exact cone angle ( θ ) can be calculated.
Chemical formula CAS number Melting point Boiling point P–X bond length X–P–X bond angle Dipole moment; PF 3 Phosphorus trifluoride [7783-55-3] -151.5°C -101.8°C 156 pm 96.3° 1.03 D PCl 3 Phosphorus trichloride [7719-12-2] -93.6°C 76.1°C 204 pm 100° 0.56 D PBr 3 Phosphorus tribromide [7789-60-8] -41.5°C 173.2°C 222 pm 101°
Phosphoryl chloride (commonly called phosphorus oxychloride) is a colourless liquid with the formula P O Cl 3. It hydrolyses in moist air releasing phosphoric acid and fumes of hydrogen chloride. It is manufactured industrially on a large scale from phosphorus trichloride and oxygen or phosphorus pentoxide. [4] It is mainly used to make ...