Inorganic Chemistry, Vol.48, No.5, 1911-1919, 2009
Hydrogen Polyphosphides P3H23- and P3H32-: Synthesis and Crystal Structure of K-3(P3H2)center dot 2.3NH(3), Rb-3(P3H2)center dot NH3, [Rb(18-crown-6)](2)(P3H3)center dot 7.5NH(3), and [Cs(18-crown-6)](2)(P3H3)center dot 7NH(3)
The incongruous solvation of polyphosphides and phosphanes or the direct reduction of white phosphorus in liquid ammonia leads to the hydrogen polyphosphides catena-dihydrogen triphosphide, P3H23-, and catena-trihydrogen triphosphide, P3H32-, in the crystalline compounds K-3(P3H2)center dot 2.3NH(3) (1), Rb-3(P3H2)center dot NH3 (2), [Rb(18-crown-6)](2)(P3H3)center dot 7.5NH(3) (3), and [Cs(18-crown-6)](2)(P3H3)center dot 7NH(3) (4).