A novel actinide endohedral fullerene with an unexpected chiral cage, Th@C(11)-C, was synthesized and characterized. DFT calculations suggest that this low symmetry cage was favoured as a consequence of the strong interaction between Th and the cage, which makes the predictions by the ionic model less reliable for these endohedral mono-metallofullerenes.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1039/c9cc04613e | DOI Listing |
Inorg Chem
January 2025
Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Tsinghua University, Beijing 10084, China.
Actinide elements are characterized by their unique electronic correlations, variable valence states, and localized 5f electrons, leading to unconventional electronic and topological properties in their compounds. The distinctive physical properties of actinide materials are maintained in low-dimensional forms, yet two-dimensional (2D) actinide materials remain largely unexplored due to their scarcity and the experimental challenges posed by their radioactivity. To fill the knowledge gap in 2D actinide materials, we theoretically designed a series of stable thorium-containing 2D materials, including MXenes, chalcogenides, halides, and other compounds with unique structures.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
Department of Chemistry and Centre for Radiochemistry Research, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
Although two examples of σ-bonded -bent [RSbSbR] (R = bulky organo- or Ga-groups) that formally contain the Sb radical trianion moiety are known in p-block chemistry, d- or f-element Sb radical trianion complexes, with or without R-substituents, have remained elusive. Here, we report that reduction of a 77:23 mix of [{Th(Tren)}(μ-η:η-Sb)] (, Tren = {N(CHCHNSiPr)}):[{Th(Tren)}(μ-SbH)] () with 1.5 equiv of KC in the presence of 1.
View Article and Find Full Text PDFCurr Radiopharm
January 2025
Apollonia" University of Iasi, Faculty of Dental Medicine, 11 Pacurari Str., 700511, Iasi, Romania.
Background: In the context of modern oncology, radiogenic elements have emerged as pivotal tools for targeted cancer therapies. Elements like Iodine-131 and Yttrium-90 offer unique radiological properties that allow precise treatment delivery. This article explores their growing importance and potential in reshaping the landscape of cancer therapy.
View Article and Find Full Text PDFAcc Chem Res
January 2025
Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260, United States.
ConspectusUnderstanding f element-ligand covalency is at the center of efforts to design new separations schemes for spent nuclear fuel, and is therefore of signficant fundamental and practical importance. Considerable effort has been invested into quantifying covalency in f element-ligand bonding. Over the past decade, numerous studies have employed a variety of techniques to study covalency, including XANES, EPR, and optical spectroscopies, as well as X-ray crystallography.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
University of California Berkeley, Chemistry, UNITED STATES OF AMERICA.
Understanding the chemistry of the inert actinide oxo bond in actinyl ions AnO22+ is important for controlling actinide behavior in the environment, during separations, and in nuclear waste (An = U, Np, Pu). The thioether calixarene TC4A (4-tert-butyltetrathiacalix[4]arene) binds equatorially to [AnO2]n+ (An = U, Np) forming a conical pocket that differentiates the two trans-oxo groups. The 'ate' complexes, [A]2[UO2(TC4A)] (A = [Li(DME)2], HNEt3) and [HNEt3]2[NpO2(TC4A)], enable selective oxo chemistry.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!