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Issue 84, 2014
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Bypassing a highly unstable frustrated Lewis pair: dihydrogen cleavage by a thermally robust silylium–phosphine adduct

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Abstract

The thermally robust silylium complex [iPr3Si–PtBu3]+[B(C6F5)4] (1) activates H2/D2 at 90 °C (PhCl); no evidence for dissociation into the separated Lewis pair is found. DFT calculations show H2 cleavage proceeds via Si–P bond elongation to form an encounter complex directly from the adduct, thus avoiding the non-isolable iPr3Si+–PtBu3 FLP.

Graphical abstract: Bypassing a highly unstable frustrated Lewis pair: dihydrogen cleavage by a thermally robust silylium–phosphine adduct

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Publication details

The article was received on 29 Jul 2014, accepted on 26 Aug 2014 and first published on 26 Aug 2014


Article type: Communication
DOI: 10.1039/C4CC05905K
Citation: Chem. Commun., 2014,50, 12753-12756
  • Open access: Creative Commons BY license
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    Bypassing a highly unstable frustrated Lewis pair: dihydrogen cleavage by a thermally robust silylium–phosphine adduct

    T. J. Herrington, B. J. Ward, L. R. Doyle, J. McDermott, A. J. P. White, P. A. Hunt and A. E. Ashley, Chem. Commun., 2014, 50, 12753
    DOI: 10.1039/C4CC05905K

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