A polynuclear samarium imido complex [(L)Sm4(μ3-NSiMe3)4] (2) featuring a cubane-like cluster has been synthesized from the reaction of an organic azide and a samarium(II) complex [(L)SmI2Li2(THF)(Et2O)2] (1). In addition, this divalent samarium starting material (1) reacts with azobenzene to give the first example of a well-defined doubly-fused cubic imido-cluster [(L)Sm6(μ3-NPh)4(μ4-NPh)2I2(THF)2] (4) in addition to a major cubic complex [(L)Sm4(μ3-NPh)4] (3).
通过有机
叠氮化物和
钐(II)络合物[(L)SmI2Li2(THF)(Et2O)2](1)的反应,合成了一种多核
钐亚胺络合物[(L)Sm4(μ3-NSiMe3)4](2),该络合物具有类似立方体的团簇。此外,这种二价
钐起始材料 (1) 与
偶氮苯反应,除了得到一个主要的立方络合物 [(L)Sm4(μ3-NPh)4](3)之外,还得到了第一个定义明确的双融合立方
亚胺簇 [(L)Sm6(μ3-NPh)4(μ4-NPh)2I2(THF)2](4)。