Agrawal NK, Gayathridevi S, Dash SR, Vanka K, Jagirdar BR. H-atom site exchange in an iridium
trans-dihydrogen/hydride complex,
trans-[Ir(H)(η
2-H
2)
(iPr)4(POCOP)(DMAP)]
.
Dalton Trans 2023;
52:13858-13863. [PMID:
37743752 DOI:
10.1039/d3dt02366d]
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Abstract
Treatment of trans-[Ir(H)(N)2(iPr)4(POCOP)(DMAP)][BAr4f] (2) with H2 (1 bar) under ambient conditions (298 K) results in the formation of a trans-[Ir(H)(η2-H2)(iPr)4(POCOP)(DMAP)][BAr4f] (3) complex. Complex 3 exhibits H-atom site exchange between the bound H2 and the hydride ligands which are mutually trans to one another. A plausible mechanism of this exchange involves metal-ligand cooperativity as studied by computations.
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