Über ternäre Pseudohalogeno-dicyanomercurate(II) MHg(CN)2X (M = Na,K, Rb,Cs; X = NCO,NCS und N3)

On the Ternary Pseudohalogeno-dicyanomercurates(II) MHg(CN)₂X (M = Na, K, Rb, Cs; X = NCO, NCS, N₃) The structures of the pseudohalogeno-dicyanomercurates MHg(CN)₂X · nH₂O, formed by reaction of Hg(CN)₂ with alkalipseudohalides MX (M = Na, K, Rb, Cs; X = NCO, NCS N₃) in aqueous solutions containing digonal Hg(CN)₂ molecules besides M⁺ and X^? anions. Therefore the compounds can be formulated as double salts MX · Hg(CN)₂. There are three types of structures with different values of crystal water whose structures have been determined by X-ray analysis of the cyanates NaHg(CN)₂OCN · 2H₂O, KHg (CN)₂OCN and CsHg(CN)₂OCN · H₂O.