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Issue 41, 2017
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Protonation and electrochemical reduction of rhodium– and iridium–dinitrogen complexes in organic solution

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Abstract

Protonation and reduction of pincer-ligated Rh– and Ir–N2 complexes have been studied by NMR spectroscopy and cyclic voltammetry to assess the capability of these complexes to activate or reduce N2. Protonation, which is a prerequisite to electrochemical reduction, results in a cationic metal-hydride that loses N2 under an atmosphere of Ar. Reduction of the metal-hydride results in fast disproportionation of an unobserved transient Ir2+ species. These studies suggest that the regioselectivity of initial protonation is a strong determinant for the ability of a system to facilitate the reduction of N2.

Graphical abstract: Protonation and electrochemical reduction of rhodium– and iridium–dinitrogen complexes in organic solution

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Article information


Submitted
15 Sep 2017
Accepted
02 Oct 2017
First published
11 Oct 2017

Dalton Trans., 2017,46, 14325-14330
Article type
Paper

Protonation and electrochemical reduction of rhodium– and iridium–dinitrogen complexes in organic solution

G. P. Connor, N. Lease, A. Casuras, A. S. Goldman, P. L. Holland and J. M. Mayer, Dalton Trans., 2017, 46, 14325
DOI: 10.1039/C7DT03476H

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