Issue 47, 2017

Redox non-innocent bis(2,6-diimine-pyridine) ligand–iron complexes as anolytes for flow battery applications

Abstract

Diiminepyridines are a well-known class of “non-innocent” ligands that confer additional redox activity to coordination complexes beyond metal-centred oxidation/reduction. Here, we demonstrate that metal coordination complexes (MCCs) of diiminepyridine (DIP) ligands with iron are suitable anolytes for redox-flow battery applications, with enhanced capacitance and stability compared with bipyridine analogs, and access to storage of up to 1.6 electron equivalents. Substitution of the ligand is shown to be a key factor in the cycling stability and performance of MCCs based on DIP ligands, opening the door to further optimization.

Graphical abstract: Redox non-innocent bis(2,6-diimine-pyridine) ligand–iron complexes as anolytes for flow battery applications

Supplementary files

Article information

Article type
Paper
Submitted
17 Oct 2017
Accepted
10 Nov 2017
First published
13 Nov 2017

Dalton Trans., 2017,46, 16439-16445

Redox non-innocent bis(2,6-diimine-pyridine) ligand–iron complexes as anolytes for flow battery applications

G. M. Duarte, J. D. Braun, P. K. Giesbrecht and D. E. Herbert, Dalton Trans., 2017, 46, 16439 DOI: 10.1039/C7DT03915H

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