Thorium–phosphorus triamidoamine complexes containing Th–P single- and multiple-bond interactions

Abstract Despite the burgeoning field of uranium-ligand multiple bonds, analogous complexes involving other actinides remain scarce. For thorium, under ambient conditions only a few multiple bonds to carbon, nitrogen, oxygen, sulfur, selenium and tellurium are reported, and no multiple bonds to phos...

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Main Authors: Elizabeth P. Wildman, Gábor Balázs, Ashley J. Wooles, Manfred Scheer, Stephen T. Liddle
Format: Article
Language:English
Published: Nature Portfolio 2016-09-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/ncomms12884
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author Elizabeth P. Wildman
Gábor Balázs
Ashley J. Wooles
Manfred Scheer
Stephen T. Liddle
author_facet Elizabeth P. Wildman
Gábor Balázs
Ashley J. Wooles
Manfred Scheer
Stephen T. Liddle
author_sort Elizabeth P. Wildman
collection DOAJ
description Abstract Despite the burgeoning field of uranium-ligand multiple bonds, analogous complexes involving other actinides remain scarce. For thorium, under ambient conditions only a few multiple bonds to carbon, nitrogen, oxygen, sulfur, selenium and tellurium are reported, and no multiple bonds to phosphorus are known, reflecting a general paucity of synthetic methodologies and also problems associated with stabilising these linkages at the large thorium ion. Here we report structurally authenticated examples of a parent thorium(IV)–phosphanide (Th–PH2), a terminal thorium(IV)–phosphinidene (Th=PH), a parent dithorium(IV)–phosphinidiide (Th–P(H)-Th) and a discrete actinide–phosphido complex under ambient conditions (Th=P=Th). Although thorium is traditionally considered to have dominant 6d-orbital contributions to its bonding, contrasting to majority 5f-orbital character for uranium, computational analyses suggests that the bonding of thorium can be more nuanced, in terms of 5f- versus 6d-orbital composition and also significant involvement of the 7s-orbital and how this affects the balance of 5f- versus 6d-orbital bonding character.
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spelling doaj.art-a8c04fbc074b48debf57a62235732ee32023-06-04T11:32:06ZengNature PortfolioNature Communications2041-17232016-09-017111110.1038/ncomms12884Thorium–phosphorus triamidoamine complexes containing Th–P single- and multiple-bond interactionsElizabeth P. Wildman0Gábor Balázs1Ashley J. Wooles2Manfred Scheer3Stephen T. Liddle4School of Chemistry, The University of ManchesterInstitute of Inorganic Chemistry, University of RegensburgSchool of Chemistry, The University of ManchesterInstitute of Inorganic Chemistry, University of RegensburgSchool of Chemistry, The University of ManchesterAbstract Despite the burgeoning field of uranium-ligand multiple bonds, analogous complexes involving other actinides remain scarce. For thorium, under ambient conditions only a few multiple bonds to carbon, nitrogen, oxygen, sulfur, selenium and tellurium are reported, and no multiple bonds to phosphorus are known, reflecting a general paucity of synthetic methodologies and also problems associated with stabilising these linkages at the large thorium ion. Here we report structurally authenticated examples of a parent thorium(IV)–phosphanide (Th–PH2), a terminal thorium(IV)–phosphinidene (Th=PH), a parent dithorium(IV)–phosphinidiide (Th–P(H)-Th) and a discrete actinide–phosphido complex under ambient conditions (Th=P=Th). Although thorium is traditionally considered to have dominant 6d-orbital contributions to its bonding, contrasting to majority 5f-orbital character for uranium, computational analyses suggests that the bonding of thorium can be more nuanced, in terms of 5f- versus 6d-orbital composition and also significant involvement of the 7s-orbital and how this affects the balance of 5f- versus 6d-orbital bonding character.https://doi.org/10.1038/ncomms12884
spellingShingle Elizabeth P. Wildman
Gábor Balázs
Ashley J. Wooles
Manfred Scheer
Stephen T. Liddle
Thorium–phosphorus triamidoamine complexes containing Th–P single- and multiple-bond interactions
Nature Communications
title Thorium–phosphorus triamidoamine complexes containing Th–P single- and multiple-bond interactions
title_full Thorium–phosphorus triamidoamine complexes containing Th–P single- and multiple-bond interactions
title_fullStr Thorium–phosphorus triamidoamine complexes containing Th–P single- and multiple-bond interactions
title_full_unstemmed Thorium–phosphorus triamidoamine complexes containing Th–P single- and multiple-bond interactions
title_short Thorium–phosphorus triamidoamine complexes containing Th–P single- and multiple-bond interactions
title_sort thorium phosphorus triamidoamine complexes containing th p single and multiple bond interactions
url https://doi.org/10.1038/ncomms12884
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