Issue 47, 2023

Utility of all-pyrazole heteroscorpionates in f-element chemistry

Abstract

Since their discovery in 1966, scorpionate ligands have been utilized to make coordination compounds for a variety of applications such as: studying organometallic reactions, biomimetic complexes, light-emitting materials and single-ion magnets. The recent development of a solvent-free pyrazole substitution chemistry has yielded the quantitative synthesis of asymmetrically functionalized all-pyrazole heteroscorpionate ligands. In this frontier article, we highlight the utility of all-pyrazole heteroscorpionates, specifically, nitro-trispyrazolylborates, in f-element chemistry. They offer great versatility in coordinating ability, donor strength, steric bulk and even optical charge transfer properties, all of which can be used to tune the properties of resultant complexes with metal ions. We show how they can impart structural diversity, sensitize Ln3+ luminescence and engender magnetic anisotropy and slow magnetic relaxation in the ion they coordinate. Additionally, we comment on the future of functionalized trispyrazolyl scorpionates, which includes enabling post-synthetic modifications of f-element complexes and becoming a platform to study the electronic properties of low oxidation state actinides.

Graphical abstract: Utility of all-pyrazole heteroscorpionates in f-element chemistry

Article information

Article type
Frontier
Submitted
22 Eost 2023
Accepted
02 Du 2023
First published
09 Du 2023

Dalton Trans., 2023,52, 17656-17665

Utility of all-pyrazole heteroscorpionates in f-element chemistry

C. Hossack, C. Cahill and C. Besson, Dalton Trans., 2023, 52, 17656 DOI: 10.1039/D3DT02737F

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