{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Tsoureas N"],"funding":["European Research Council","University Of Sussex","Engineering and Physical Sciences Research Council"],"pagination":["4624-4632"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC6013772"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["7(7)"],"pubmed_abstract":["The synthesis and molecular structures of a U(v) neutral terminal oxo complex and a U(v) sodium uranium nitride contact ion pair are described. The synthesis of the former is achieved by the use of <sup><i>t</i></sup> BuNCO as a mild oxygen transfer reagent, whilst that of the latter is <i>via</i> the reduction of NaN<sub>3</sub>. Both mono-uranium complexes are stabilised by the presence of bulky silyl substituents on the ligand framework that facilitate a 2e<sup>-</sup> oxidation of a single U(iii) centre. In contrast, when steric hindrance around the metal centre is reduced by the use of less bulky silyl groups, the products are di-uranium, U(iv) bridging oxo and (anionic) nitride complexes, resulting from 1e<sup>-</sup> oxidations of two U(iii) centres. SQUID magnetometry supports the formal oxidation states of the reported complexes. Electrochemical studies show that the U(v) terminal oxo complex can be reduced and the [U(iv)O]<sup>-</sup> anion was accessed <i>via</i> reduction with K/Hg, and structurally characterised. Both the nitride complexes display complex electrochemical behaviour but each exhibits a quasi-reversible oxidation at <i>ca.</i> -1.6 V <i>vs.</i> Fc<sup>+/0</sup>."],"journal":["Chemical science"],"pubmed_title":["Steric control of redox events in organo-uranium chemistry: synthesis and characterisation of U(v) oxo and nitrido complexes."],"pmcid":["PMC6013772"],"funding_grant_id":["Project 247390","247390","EP/M023885/1"],"pubmed_authors":["Tsoureas N","Kilpatrick AFR","Cloke FGN","Inman CJ"],"additional_accession":[]},"is_claimable":false,"name":"Steric control of redox events in organo-uranium chemistry: synthesis and characterisation of U(v) oxo and nitrido complexes.","description":"The synthesis and molecular structures of a U(v) neutral terminal oxo complex and a U(v) sodium uranium nitride contact ion pair are described. The synthesis of the former is achieved by the use of <sup><i>t</i></sup> BuNCO as a mild oxygen transfer reagent, whilst that of the latter is <i>via</i> the reduction of NaN<sub>3</sub>. Both mono-uranium complexes are stabilised by the presence of bulky silyl substituents on the ligand framework that facilitate a 2e<sup>-</sup> oxidation of a single U(iii) centre. In contrast, when steric hindrance around the metal centre is reduced by the use of less bulky silyl groups, the products are di-uranium, U(iv) bridging oxo and (anionic) nitride complexes, resulting from 1e<sup>-</sup> oxidations of two U(iii) centres. SQUID magnetometry supports the formal oxidation states of the reported complexes. Electrochemical studies show that the U(v) terminal oxo complex can be reduced and the [U(iv)O]<sup>-</sup> anion was accessed <i>via</i> reduction with K/Hg, and structurally characterised. Both the nitride complexes display complex electrochemical behaviour but each exhibits a quasi-reversible oxidation at <i>ca.</i> -1.6 V <i>vs.</i> Fc<sup>+/0</sup>.","dates":{"release":"2016-01-01T00:00:00Z","publication":"2016 Jul","modification":"2026-06-04T12:40:18.551Z","creation":"2026-05-10T03:10:40.26Z"},"accession":"S-EPMC6013772","cross_references":{"pubmed":["30155110"],"doi":["10.1039/c6sc00632a"]}}