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Organometallic neptunium(III) complexes
journal contribution
posted on 2023-05-18, 19:38 authored by Dutkiewicz, MS, Farnaby, JH, Apostolidis, C, Colineau, E, Walter, O, Magnani, N, Michael GardinerMichael Gardiner, Love, JB, Kaltsoyannis, N, Caciuffo, R, Arnold, PLStudies of transuranic organometallic complexes provide a particularly valuable insight into covalent contributions to the metal–ligand bonding, in which the subtle differences between the transuranium actinide ions and their lighter lanthanide counterparts are of fundamental importance for the effective remediation of nuclear waste. Unlike the organometallic chemistry of uranium, which has focused strongly on UIII and has seen some spectacular advances, that of the transuranics is significantly technically more challenging and has remained dormant. In the case of neptunium, it is limited mainly to NpIV. Here we report the synthesis of three new NpIII organometallic compounds and the characterization of their molecular and electronic structures. These studies suggest that NpIII complexes could act as single-molecule magnets, and that the lower oxidation state of NpII is chemically accessible. In comparison with lanthanide analogues, significant d- and f-electron contributions to key NpIII orbitals are observed, which shows that fundamental neptunium organometallic chemistry can provide new insights into the behaviour of f-elements.
History
Publication title
Nature ChemistryVolume
8Issue
8Pagination
797-802ISSN
1755-4330Department/School
School of Natural SciencesPublisher
Nature Publishing GroupPlace of publication
United KingdomRights statement
Copyright © 2016 Nature Publishing GroupRepository Status
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