A Crystalline Tri-thorium Cluster with σ-Aromatic Metal-Metal Bonding.

@article{Boronski2021ACT,
  title={A Crystalline Tri-thorium Cluster with $\sigma$-Aromatic Metal-Metal Bonding.},
  author={Josef T. Boronski and John A. Seed and David Hunger and Adam W. Woodward and Joris van Slageren and Ashley J. Wooles and Louise S. Natrajan and Nikolas Kaltsoyannis and Stephen T. Liddle},
  journal={Nature},
  year={2021}
}
Metal-metal bonding is a widely studied area of chemistry1-3, and has become a mature field spanning numerous d transition metal and main group complexes4-7. In contrast, actinide-actinide bonding is predicted to be weak8, being currently restricted to spectroscopically-detected gas-phase U2 and Th29,10, U2H2 and U2H4 in frozen matrices at 6-7 Kelvin (K)11,12, or fullerene-encapsulated U213. Conversely, attempts to prepare thorium-thorium bonds in frozen matrices produced only ThHn (n = 1-4)14… 
A Crystalline Tri-thorium Cluster: When Metal σ-Aromaticity Just Isn’t Enough
This study provides multiple incontrovertible evidences that the crystalline tri-thorium cluster recently synthesized by Liddle and co-workers is truly σ-aromatic, but the role of aromaticity is
Aromatic, or Antiaromatic, That Is the Question:
The term aromaticity in chemistry is reminiscent of symmetric, stable structures that have delocalized electrons and sustain diamagnetic ring currents in the presence of external magnetic fields. The
12-Membered Ring Carbides with Stabilization of Actinide Atoms.
  • Ke Zhou, Yang-Yang Zhang, Xiao-Tong Chen, Shu-Xian Hu
  • Medicine
    Inorganic chemistry
  • 2022
TLDR
The structural characterization and bonding analyses of [C12], ThC12, and UC12 clusters are reported via a global-minimum search combined with relativistic quantum chemistry calculations to elucidate the stability and bonding nature of An-C bonds.
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