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Updated: Dec 8, 2025

Synthesis of a Water-soluble Metal–Organic Complex Array
Published on: October 8, 2016
Synthetic Approaches to Metallo-Supramolecular CoII Polygons and Potential Use for H2O Oxidation
Ayuk M Ako1, Amal Cherian Kathalikkattil1, Rory Elliott1
1School of Chemistry & AMBER Center, Trinity College, University of Dublin, Dublin D02 PN40, Ireland.
Abstract:
Metal-directed self-assembly has been applied to prepare supramolecular coordination polygons which adopt tetrahedral (1) or trigonal disklike topologies (2). In the solid state, 2 assembles into a stable halide-metal-organic material (Hal-MOM-2), which catalyzes H2O oxidation under photo- and electrocatalytic conditions, operating with a maximum TON = 78 and TOF = 1.26 s-1. DFT calculations attribute the activity to a CoIII-oxyl species. This study provides the first account of how CoII imine based supramolecules can be employed as H2O oxidation catalysts.
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