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    Rights statement: This is the peer reviewed version of the following article:A. Formanuik, F. Ortu, J. Liu, L. E. Nodaraki, F. Tuna, A. Kerridge, D. P. Mills, Chem. Eur. J. 2017, 23, 2290. which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/chem.201605974 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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Double Reduction of 4,4′-Bipyridine and Reductive Coupling of Pyridine by Two Thorium(III) Single-Electron Transfers

Research output: Contribution to journalJournal articlepeer-review

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  • Alasdair Formanuik
  • Fabrizio Ortu
  • Jingjing Liu
  • Nodaraki Lydia
  • Floriana Tuna
  • Andrew Kerridge
  • David Mills
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<mark>Journal publication date</mark>16/02/2017
<mark>Journal</mark>Chemistry - A European Journal
Issue number10
Volume23
Number of pages4
Pages (from-to)2290-2293
Publication StatusPublished
Early online date23/12/16
<mark>Original language</mark>English

Abstract

The redox chemistry of uranium is burgeoning and uranium(III) complexes have been shown to promote many interesting synthetic transformations. However, their utility is limited by their reduction potentials, which are smaller than many non‐traditional lanthanide(II) complexes. Thorium(III) has a greater redox potential so it should present unprecedented opportunities for actinide reactivity but as with uranium(II) and thorium(II) chemistry, these have not yet been fully realized. Herein we present reactivity studies of two equivalents of [Th(Cp′′)3] (1, Cp′′={C5H3(SiMe3)2‐1,3}) with 4,4′‐bipyridine or two equivalents of pyridine to give [{Th(Cp′′)3}2{μ‐(NC5H4)2}] (2) and [{Th(Cp′′)3}2{μ‐(NC5H5)2}] (3), respectively. As relatively large reduction potentials are required to effect these transformations we have shown that thorium(III) can promote reactions that uranium(III) cannot, opening up promising new reductive chemistry for the actinides.

Bibliographic note

This is the peer reviewed version of the following article:A. Formanuik, F. Ortu, J. Liu, L. E. Nodaraki, F. Tuna, A. Kerridge, D. P. Mills, Chem. Eur. J. 2017, 23, 2290. which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/chem.201605974 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.