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Issue 2, 2013
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Fluorinated diarylamide complexes of uranium(III, IV) incorporating ancillary fluorine-to-uranium dative interactions

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Abstract

The fluorinated diarylamines HNPhPhF, HNPhF2, HNPhArF, PhF = 2,3,4,5,6-pentafluorophenyl, ArF = 3,5-bis(trifluoromethyl)phenyl, are used to prepare complexes of uranium(III, IV) ions. Despite being electron-poor amines with little steric bulk, their coordinated amide ligands exhibit direct control over the coordination environment through a subtle, cooperative interplay of multiple labile F→U dative interactions and favorable arene–arene interactions. The C–F→U interactions, ∼8.9 kcal mol−1 as determined by variable temperature NMR experiments, persist in solution and allow the isolation of otherwise unstable species as well as the first pseudo-square planar uranium complex.

Graphical abstract: Fluorinated diarylamide complexes of uranium(iii, iv) incorporating ancillary fluorine-to-uranium dative interactions

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Publication details

The article was received on 06 Sep 2012, accepted on 24 Nov 2012 and first published on 26 Nov 2012


Article type: Edge Article
DOI: 10.1039/C2SC21458J
Citation: Chem. Sci., 2013,4, 798-805
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    Fluorinated diarylamide complexes of uranium(III, IV) incorporating ancillary fluorine-to-uranium dative interactions

    H. Yin, A. J. Lewis, U. J. Williams, P. J. Carroll and E. J. Schelter, Chem. Sci., 2013, 4, 798
    DOI: 10.1039/C2SC21458J

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