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Issue 20, 2018
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The global electrophilicity index as a metric for Lewis acidity

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Abstract

The global electrophilicity index, GEI, is used as a general, quantitative and base-independent metric of Lewis acidity. This parameter has been benchmarked against the established fluoride ion affinity, FIA, for a range of 22 neutral and cationic Lewis acids from across the p-block, including boranes, trityl derivatives, phosphonium cations and sulfoxonium cations. As a demonstration of utility, the GEI is used to catalogue a library of fluoroaryl boranes as it provides a rapid tool for the comparison of a series of Lewis acids featuring peripheral substituent variation.

Graphical abstract: The global electrophilicity index as a metric for Lewis acidity

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Supplementary files

Article information


Submitted
28 Apr 2018
Accepted
02 May 2018
First published
02 May 2018

Dalton Trans., 2018,47, 7029-7035
Article type
Paper

The global electrophilicity index as a metric for Lewis acidity

A. R. Jupp, T. C. Johnstone and D. W. Stephan, Dalton Trans., 2018, 47, 7029
DOI: 10.1039/C8DT01699B

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