C6H5PH2O

C6H5PH2O is the chemical formula for phenylphosphinous acid. It is an organophosphorus compound characterized by a phenyl group (C6H5) attached to a phosphorus atom, which is also bonded to two hydrogen atoms and one oxygen atom. Phenylphosphinous acid is a relatively unstable compound and is often encountered as a tautomer or derivative rather than in its pure, isolated form. The structure features a phosphorus(III) center. It can undergo oxidation to form phenylphosphinic acid, C6H5PHO2. Reactions involving phenylphosphinous acid typically involve the phosphorus atom acting as a nucleophile or undergoing oxidation. Its reactivity is influenced by the presence of the phenyl ring, which can stabilize certain intermediates or transition states. Due to its instability, detailed studies of its physical properties are limited. It is not commonly found in industrial applications and is primarily of interest in academic research related to organophosphorus chemistry.