Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States.
Department of Chemistry and Biochemistry, New Mexico State University, MSC 3C, PO box 30001, Las Cruces, New Mexico 88003, United States.
Inorg Chem. 2023 Apr 24;62(16):6368-6374. doi: 10.1021/acs.inorgchem.3c00217. Epub 2023 Apr 12.
Dinuclear, organometallic, transuranium compounds, (Cp'M)(μ-4,4'-bpy) (Cp' = trimethylsilylcyclopentadienide, 4,4'-bpy = 4,4'-bipyridine, M = Ce, Np, Pu), reported herein provide a rare opportunity to probe the nature of actinide-carbon bonding. Significant splitting of the f-f transitions results from the unusual coordination environment in these complexes and leads to electronic properties that are currently restricted to organoactinide systems. Structural and spectroscopic characterization in the solid state and in solution for (Cp'M)(μ-4,4'-bpy) (M = Np, Pu) are reported, and their structural metrics are compared to a cerium analogue.
双核、有机金属、超铀化合物（Cp'M）（μ-4,4'-bpy）（Cp'=三甲基甲硅烷基环戊二烯基，4,4'-bpy=4,4'-联吡啶，M=Ce、Np、Pu），本文报道了提供了一个罕见的机会来探究锕系元素-碳键的性质。由于这些配合物中不寻常的配位环境，f-f 跃迁发生了显著的分裂，导致了目前仅限于有机锕系元素体系的电子性质。本文报道了（Cp'M）（μ-4,4'-bpy）（M=Np、Pu）在固态和溶液中的结构和光谱表征，并将其结构度量与铈类似物进行了比较。
