6H4}ThCl(μ-Cl)2[Li(DME)]2 (2b) were isolated and fully characterized. The common feature among these two species is that the switching of bonding mode of the pyrrolide rings, resulting from the coordination of the aluminum residues, is accompanied by deprotonation of the central ring. Attempts to reduce 1 yielded the paramagnetic [η5-1,3-[(η5-2-C4H3N)(CH3)2C]2C6H4}ThK(μ-Cl)3][Li(DME)3] (3), which
A双-
吡咯配体含有在主链中具有非芳族环与ThCl反应4(
DME)2,得到相应的η 6 - 1,3 - [(2-C 4 H ^ 3 N)(CH 3)2 C ^ ] 2 C 6 H 4 } ThCl 3 ] [Li(
DME)3 ](1)配合物。在该物种中,the系元素与环的π键相互作用可能是由空间约束引起的。用Et 3处理络合物1时,
吡咯环的键合模式从σ转换为π铝 该反应还伴随有芳环的去质子化和形成了两个类似的化合物,其环σ键合至Th
金属中心。两种化合物[1,3 - [(η 5 -2-C 4 H ^ 3 N)(CH 3)2 C] 2 ç 6 ħ 4 }的Th(μ-CL-ALET 2)2 ](μ- Cl)的2 - [1,3 - [(η 5 -2-C 4 H ^ 3 N)(CH 3)2 C]ç 6 ħ 4 }的Th](μ-ALET 2)CL]}·(C 7 ħ 8)0.5(图2a)和[1