Addition of 2 equiv of I2 to a stirring suspension of UH3 in Et2O results in vigorous gas evolution and the formation of UI4(OEt2)2 (1), which can be isolated in good yields as an air- and moisture-sensitive brick-red powder. Addition of 3 equiv of AgBr to UH3 in DME produces UBr3(DME)2 (2), while addition of 4 equiv of AgX to UH3 in DME–CH2Cl2 provides UX4(DME)2 (X = Br, 3; Cl, 4). Similarly, the reaction of 4 equiv of AgOTf with UH3 in neat DME generates U(OTf)4(DME)2 (5). Each of these reactions proceeds with the evolution of hydrogen. Complex 1 can also be generated by reaction of 4 equiv of Me3SiI with UCl4 in Et2O. All complexes were fully characterized, including analysis by X-ray crystallography.
向 UH3 在 Et2O 中的搅拌悬浮液中加入 2 等量的 I2 会产生剧烈的气体演化,并形成 UI4(OEt2)2 (1),这种对空气和湿气敏感的砖红色粉末可以很好地分离出来。在二
甲醚中向 UH3 加入 3 等量的 AgBr 会生成 UBr3(
DME)2 (2),而在二
甲醚-
CH2Cl2 中向 UH3 加入 4 等量的 AgX 会生成 UX4(
DME)2(X = Br,3;Cl,4)。同样,在纯二
甲醚中,4 等量的 AgOTf 与 UH3 反应生成 U(OTf)4(
DME)2 (5)。上述每个反应都伴随着氢的进化。络合物 1 也可以通过 4 等量的 Me3SiI 与 UCl4 在 Et2O 中的反应生成。所有络合物都经过了全面的表征,包括 X 射线晶体学分析。