Ligand architecture for triangular metal complexes: a high oxidation state Ni 3 cluster with proximal metal arrangement

A new multidentate tetraanionic ligand platform for supporting trinuclear transition metal clusters has been developed. Two trisphenoxide phosphinimide ligands bind three Ni centers in a triangular arrangement. The phosphinimide donors bridge in μ 3 fashion and the phenoxides complete a pseudo-squar...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2020-09, Vol.56 (76), p.11279-11282
Main Authors: Shoshani, Manar M., Agapie, Theodor
Format: Article
Language:English
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Summary:A new multidentate tetraanionic ligand platform for supporting trinuclear transition metal clusters has been developed. Two trisphenoxide phosphinimide ligands bind three Ni centers in a triangular arrangement. The phosphinimide donors bridge in μ 3 fashion and the phenoxides complete a pseudo-square planar coordination sphere around each metal center. Electrochemical studies reveal two pseudo-reversible oxidation events at notably low potentials (−0.80 V and +0.05 V). The one electron oxidized species was characterized structurally, and it is assigned as a Ni III -containing cluster.
ISSN:1359-7345
1364-548X
DOI:10.1039/D0CC03816D