Altering the spectroscopy, electronic structure, and bonding of organometallic curium(III) upon coordination of 4,4'-bipyridine.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 37355669.
- Also identified by DOI 10.1038/s41467-023-39481-7 and PMC identifier 10290646.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Structural and electronic characterization of (Cp'<sub>3</sub>Cm)<sub>2</sub>(μ-4,4'-bpy) (Cp' = trimethylsilylcyclopentadienyl, 4,4'-bpy = 4,4'-bipyridine) is reported and provides a rare example of curium-carbon bonding. Cp'<sub>3</sub>Cm displays unexpectedly low energy emission that is quenched upon coordination by 4,4'-bipyridine. Electronic structure calculations on Cp'<sub>3</sub>Cm and (Cp'<sub>3</sub>Cm)<sub>2</sub>(μ-4,4'-bpy) rule out significant differences in the emissive state, rendering 4,4'-bipyridine as the primary quenching agent. Comparisons of (Cp'<sub>3</sub>Cm)<sub>2</sub>(μ-4,4'-bpy) with its samarium and gadolinium analogues reveal atypical bonding patterns and electronic features that offer insights into bonding between carbon with f-block metal ions. Here we show the structural characterization of a curium-carbon bond, in addition to the unique electronic properties never before observed in a curium compound.
Medical subject headings
- Curium
- Heterocyclic Compounds