配合物[Li(DME)_3][(t-BuCp)_2Nd(NPh_2)_2]·(1/2)DME的合成及晶体结构

Synthesis and Crystal Structure of the Complex [Li(DME)_3][(t-BuCp)_2-Nd(NPh_2)_2]·1/2DME

1990年,Schumann,H.等报道了用双(环戊=烯基)稀土甲基化物与二苯胺进行交换反应制得了[Li(THF)_4][Cp_2Sm(NPh_2)_2],并测定了相应配合物镥的结构。但是,到目前为止,类似的轻稀土配合物尚未报道。这里,我们以双(叔丁基环戊二烯基)氯化钛为前体,与等当量的二苯胺基锂反应,制得了阴离子型配合物[Li(DME)_3][(t—BUCP)_2Nd(NPh_2)_2]·1/2DME,并测定了其单晶结构。

The title complex [Li(DME)3][(t-BuCp)2Nd(NPh2)2] -1/2DME was synthesized and its crystal structure was determined. The complex belongs to the triclinic system, space group P1, with a=1.2735(3), b=1.3344(4), c = 1.6864(3)nm; α= 94.73(2),β= 90.94(2), r = 92.13(2)°; V = 2.8534(l)nm3and Z = 2. The molecular structure was solved by Patterson method and Fourier method and refined by least-squares with anisotropic thermal parameters. The value of R is 0.042.