[Am(C5Me4H)3]: An Organometallic Americium Complex

We report the small‐scale synthesis, isolated yield, single‐crystal X‐ray structure, 1H NMR solution spectroscopy /solid‐state UV/Vis‐nIR spectroscopy, and density functional theory (DFT)/ab initio wave function theory calculations on an Am3+ organometallic complex, [Am(C5Me4H)3] (1). This constitutes the first quantitative data on Am−C bonding in a molecular species. Captain americium: The first structural characterization of an Am−C molecular interaction along with a suite of standard synthetic chemistry characterization techniques, including both 1H NMR and solution UV/Vis‐NIR spectroscopy have been performed. Detailed theoretical models of the electronic structure show excellent agreement with experimental data.