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化合物 来自维基百科,自由的百科全书
硒氰是一种拟卤素,化学式为(SeCN)2。它可由硒氰酸银和碘在乙醚中反应得到,其中86%的碘会转化为碘化银:[2]
它在水中按下式水解:[2]
缓慢加热硒氰,它可以歧化为二氰化硒(Se(CN)2)和二硒氰酸硒(Se(SeCN)2)。[3]
它和三苯基膦反应,可以得到Ph3P(SeCN)2[4];和二羰基二茂钛反应,羰基被取代,得到(C5H5)2Ti(NCSe)2;和二茂铬或二茂钒反应,分别得到(C5H5)2Cr(NCSe)(SeCN)和(C5H5)2V(NCSe)2。[5]它和CN−在乙腈中反应,生成SeCN−和Se(CN)2。[6]
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