Bimetallic Chemistry by Design: Approaches to the Development of Multifunctional Ligands.

Authors

Kylie S Uyeda, Phan N Phu, A S Borovik

Published in

Coordination chemistry reviews. Volume 561. Aug 15, 2026. Epub Apr 01, 2026.

Abstract

Bimetallic complexes enable cooperative function that is inaccessible at mononuclear sites, yet realizing such behavior in a predictable manner requires precise control over metal identity, metal/metal separation and bridging ligand environments. This review surveys synthetic strategies for constructing bimetallic architectures and highlights how these concepts inform the rational design of multifunctional ligand platforms. We focus on the development of a tripodal ligand with phosphinic amido groups [poat]^3- which enables the site-directed assembly of heterobimetallic cores. This framework provides access to FeFe, FeMn and CoFe complexes spanning multiple oxidation and protonation states, allowing systematic interrogation of proton-coupled electron transfer, redox thermodynamics, and magnetic exchange. Comparative studies reveal how metal substitution modulates oxidizing power, PCET reactivity, and spin-state behavior, offering molecular-level insight into cooperative principles that underlie both metalloenzyme function and functional bimetallic materials.

PMID:
42819564
Bibliographic data and abstract were imported from PubMed on 02 Oct 2026.

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