The synthesis, characterization, and properties of the cationic hydride [HPd(dppe)(2)](+)CF(3)SO3(-).1/8THF, the missing member of the family [HM(dppe)(2)](+)X(-) (M = Ni, Pd, Pt), are described. The Pd hydride is not stable in solution and may react as either a proton or a hydride donor. DFT QM/MM calculations of the [HPd(dppe)(2)](+) moiety have allowed us to predict its structure and reactivity.