The diiodides NdI2 and DyI2 react with nitrogen at an atmospheric pressure at 2704-550 °C to give the nitrides (LnI2)3N (Ln = Nd and Dy). The products obtained are insoluble in organic solvents; in THF, they rapidly disproportionate into LnI3(THF)3 and the iodide nitrides (NdI)3N2 of unclear structures. The nitrides (NdI2)3N and (DyI2)3N can be completely hydrolyzed into ammonia, the triiodide hydrates LnI3(H2O)2, and the monoiodide hydrates LnI(OH)2(H2O). A reaction of (NdI2)3N with excess iodobenzene in THF gives Ph3N and PhNH2 in 9 and 5% yields, respectively. Reactions of (NdI2)3N with propyl chloride, benzyl chloride, and acetyl chloride produce no nitrogen-containing products. A reaction of (NdI2)3N with CpK gives Cp3Nd(THF) in 63% yield.
二
碘化物NdI2和DyI2在2704-550 °C的气压下与氮反应,生成
氮化物(LnI2)3N(Ln = Nd和Dy)。所得产品不溶于有机溶剂;在THF中,它们迅速发生分解反应,生成LnI3(THF)3和结构不明确的
碘化
氮化物(NdI)3N2。
氮化物(NdI2)3N和(DyI2)3N可以完全
水解为
氨、三
碘化物
水合物LnI3(
H2O)2和单
碘化物
水合物LnI(OH)2( )。将(NdI2)3N与过量的
碘苯在THF中反应,分别得到Ph3N和PhNH2,产率为9%和5%。(NdI2)3N与丙基
氯、苄基
氯和
乙酰氯的反应未生成含氮产品。(NdI2)3N与CpK反应,得到Cp3Nd(THF),产率为63%。