This research demonstrates how ligand hapticity influences Lewis base dissociation in palladium, suggesting new pathways for substitution reactions.
A phosphine 1-azaallyl ligand binds to palladium through two different coordination modes, enabling rapid and reversible coordination of pyridine to the metal. Thus, the change in ligand hapticity facilitates low-barrier substitution reactions.
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Fortuna et al. (2026) studied this question.
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