Pseudochalkogenverbindungen. XXIV. Cyanamido-trimetaphosphimate

Pseudochalcogeno Compounds. XXIV. Cyanamido Trimetaphosphimates Synthesis and properties of sodium cyanamido trimetaphosphimates Na₃P₃(NH)₃O_6?n(NCN)_n] (n:2,4) are reported. This compounds may be obtained by cautious hydrolysis of the corresponding hydrocyanamido-chloro-trimetaphosphimates, P₃N₃Cl_6?n(NHCN)_n. For sodium trimetaphosphimate, Na₃P₃(NH)₃O₆] a simple, modified synthetic route is described. Possibilities of the formation of pseudochalcogeno-trimetaphosphimates of the type P₃(NH) ₃O_6?n{C(CN)₂}_n]^3? (n = 2, 4) are discussed.