Sears Jeffrey D, Sergentu Dumitru-Claudiu, Baker Tessa M, Brennessel William W, Autschbach Jochen, Neidig Michael L
Department of Chemistry, University of Rochester, B31 Hutchison Hall, 120 Trustee Road, Rochester, NY, 14627, USA.
Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA.
Angew Chem Int Ed Engl. 2020 Aug 3;59(32):13586-13590. doi: 10.1002/anie.202005138. Epub 2020 Jun 4.
Homoleptic σ-bonded uranium-alkyl complexes have been a synthetic target since the Manhattan Project. The current study describes the synthesis and characterization of several unprecedented uranium-methyl complexes. Amongst these complexes, the first example of a homoleptic uranium-alkyl dimer, [Li(THF) ] [U (CH ) ], as well as a seven-coordinate uranium-methyl monomer, {Li(OEt )Li(OEt ) UMe Li} were both crystallographically identified. The diversity of complexes reported herein provides critical insight into the structural diversity, electronic structure and bonding in uranium-alkyl chemistry.
自曼哈顿计划以来，全同配位的σ键合铀-烷基配合物一直是合成目标。当前的研究描述了几种前所未有的铀-甲基配合物的合成与表征。在这些配合物中，全同配位的铀-烷基二聚体[Li(THF) ] [U (CH ) ]以及七配位的铀-甲基单体{Li(OEt )Li(OEt ) UMe Li}均通过晶体学方法得以鉴定。本文报道的配合物的多样性为铀-烷基化学中的结构多样性、电子结构和键合提供了关键的见解。
