Isolobal Cationic Iridium Dihydride and Dizinc Complexes: A Dual Role for the ZnR Ligand Enhances H₂ Activation.

ABSTRACT: The reaction of [Ir(IPr)₂H₂][BAr^F₄] (1; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene; BAr^F₄ = B{C₆H₃(3,5-CF₃)₂}₄) with ZnMe₂ proceeds with CH₄ elimination to give [Ir(IPr)(IPr')(ZnMe)₂H][BAr^F₄] (3, where (IPr') is a cyclometalated IPr ligand). 3 reacts with H₂ to form tetrahydride [Ir(IPr)₂(ZnMe)₂H₄][BAr^F₄], 4, that loses H₂ under forcing conditions to form [Ir(IPr)₂(ZnMe)₂H₂][BAr^F₄], 5. Crystallization of 3 also results in the formatio

SUBMITTER: Walsh AM 

PROVIDER: S-EPMC11615952 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature