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Issue 40, 2014
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Structural and electrochemical characterization of a cerium(IV) hydroxamate complex: implications for the beneficiation of light rare earth ores

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Abstract

Reaction of N-phenyl-pivalohydroxamic acid with CeIII precursors leads to a homoleptic hydroxamate complex: CeIV[tBuC(O)N(O)Ph]4. Electrochemical experiments indicate a significant stabilization of the CeIV cation at Ep,c = −1.20 V versus SCE in the hydroxamate ligand framework. The spontaneous oxidation of CeIII in a hydroxamate ligand field is discussed in the context of beneficiation of the light rare earths from the fluorocarbonate mineral bastnäsite.

Graphical abstract: Structural and electrochemical characterization of a cerium(iv) hydroxamate complex: implications for the beneficiation of light rare earth ores

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Publication details

The article was received on 25 Aug 2013, accepted on 19 Oct 2013 and first published on 22 Oct 2013


Article type: Communication
DOI: 10.1039/C3CC46486E
Citation: Chem. Commun., 2014,50, 5361-5363
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    Structural and electrochemical characterization of a cerium(IV) hydroxamate complex: implications for the beneficiation of light rare earth ores

    H. B. Lee, J. A. Bogart, P. J. Carroll and E. J. Schelter, Chem. Commun., 2014, 50, 5361
    DOI: 10.1039/C3CC46486E

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