Tetrakis(triphenylphosphine)palladium(0) Tags: Chemical Compound, Chemical Substance.Tetrakis(triphenylphosphine)palladium(0) is the chemical compound Pd[P(C6H5)3]4 often abbreviated Pd(PPh3)4 or even PdP4. It is a bright yellow crystalline solid that becomes brown upon decomposition in air. thumbnail IUPAC name Tetrakis(triphenylphosphane)palladium(0) Learn more... Loading...