Triphenylphosphine_sulfide
Triphenylphosphine sulfide
Chemical compound
Triphenylphosphine sulfide (IUPAC name: triphenyl-λ5-phosphanethione) is the organophosphorus compound with the formula (C6H5)3PS, usually written Ph3PS (where Ph = phenyl). It is a colourless solid, which is soluble in a variety of organic solvents.
Structurally, the molecule resembles the corresponding oxide, with idealized C3 point group symmetry.[1] It is weakly nucleophilic at the sulfur atom.