Thorium(IV) and Uranium(IV) Halide Complexes Supported by Bulky β-Diketiminate Ligands
作者:Marisa J. Monreal、Robert J. Wright、David E. Morris、Brian L. Scott、Jeffery T. Golden、Philip P. Power、Jaqueline L. Kiplinger
DOI:10.1021/om3010965
日期:2013.3.11
β-diketiminate complex (LtBu)Th(C5H4Me)Br2 (10). Complexes 7–11 represent rare examples of thorium complexes featuring only one β-diketiminate ligand, and complexes 9–11 are the first examples of thorium and halide complexes supported by the LtBu framework. In a similar manner, both K[LMe] and K[LtBu] were shown to react with UCl4 to give the corresponding mono(β-diketiminate)uranium(IV) chloride complexes (LMe)UCl3(THF)
庞大的β-二酮基配体N,N'-双(2,6-二异丙基苯基)戊烷-2,4-二氨基甲酸酯(L Me)和N,N'-双(2,6-二异丙基苯基)-2的配位行为,2-6,6四甲基-3,5- diiminate(L TBU)朝向THX 4(THF)4(X = Br的,I)和UCL 4进行了研究。K [L Me ]和ThX 4(THF)4(X = Br,I)之间的反应提供了卤化单(β-二酮基)th (IV)配合物(L Me)ThX 3(THF)(X = Br(7),我(8))。用空间更苛刻的K [L tBu ]进行相同的反应,得到(L tBu)ThBr 3(THF)(9)和(L tBu)ThI 3(11)。所有尝试在or(IV)上安装两个β-二酮化配体的尝试均未成功,得到了单(β-二酮化)th(IV)卤化物配合物且未反应的K [L Me ]或K [L tBu ]。然而,配合物9与较小的阴离子如K [C 5 H