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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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Supplementary files

Article information


Submitted
29 Jul 2014
Accepted
26 Aug 2014
First published
26 Aug 2014

This article is Open Access

Chem. Commun., 2014,50, 12753-12756
Article type
Communication
Author version available

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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