Bis(diphenylphosphinoethyl)phenylphosphine
Bis(diphenylphosphinoethyl)phenylphosphine
Chemical compound
Bis(diphenylphosphinoethyl)phenylphosphine is the organophosphorus compound with the formula [Ph2PCH2CH2]2PPh (Ph = C6H5). It is an air-sensitive white solid that function as tridentate ligands in coordination and organometallic chemistry.
It is prepared by the free-radical-catalysed addition of phenylphosphine to vinyldiphenylphosphine:[1]
- 2 Ph2PCH=CH2 + H2PPh → [Ph2PCH2CH2]2PPh
It can bind to an octahedral metal center give either a facial or meridional isomers. Some derivatives are square planar complexes of the type [MX(triphos)]+ (M = Ni, Pd, Pt; X = halide).