Low- and Mid-Valent Uranium Species Supported by Phenyltris(oxazolinyl)borate Ligands
作者:Caleb J. Tatebe、Ellen M. Matson、Christopher L. Clark、John J. Kiernicki、Phillip E. Fanwick、Matthias Zeller、Suzanne C. Bart
DOI:10.1021/acs.organomet.9b00793
日期:2020.1.27
yl)borate (ToM) ligand framework was achieved. Uranium(IV) halide compounds, specifically ToMUCl3(THF) and ToMUI3, were generated by adding 1 equiv of Tl[ToM] to either UCl4 or UI3(THF)4, respectively. The tetravalent derivatives ToMUCl2(NPh2) and ToMUI(═N-Ad)(THF) were also synthesized, showing that ToM supports uranium amido and imido species. Attempts to make bis(phenyltris(oxazolinyl)borate) compounds
实现了具有苯基三(4,4-二甲基-2-恶唑啉基)硼酸酯(To M)配体骨架的铀衍生物家族的合成和表征。铀(IV)卤化物,具体地涉及中号UCL 3(THF)和中号UI 3,通过添加1个当量铊[为了产生中号]要么UCL 4或UI 3(THF)4分别。四价衍生物中号UCL 2(NPH 2)和中号UI(= N-AD)(THF)还合成,显示出为了中号支持铀酰胺和亚胺物种。制备双(苯基三(恶唑啉基)硼酸酯)化合物的尝试未成功。但是,当使用较小的氢三(吡唑基)硼酸酯(Tp)配体时,会分离出混合的双(配体)衍生物TpTo M UI。所有化合物均通过1 H NMR,红外和电子吸收光谱进行表征。在可能的情况下,使用X射线晶体学评估结构参数。