Investigation of Molecular Iridium Fluorides IrF_n (n=1-6): A Combined Matrix-Isolation and Quantum-Chemical Study.

ABSTRACT: The photo-initiated defluorination of iridium hexafluoride (IrF₆ ) was investigated in neon and argon matrices at 6 K, and their photoproducts are characterized by IR and UV-vis spectroscopies as well as quantum-chemical calculations. The primary photoproducts obtained after irradiation with λ=365 nm are iridium pentafluoride (IrF₅ ) and iridium trifluoride (IrF₃ ), while longer irradiation of the same matrix with λ=278 nm produced iridium tetrafluoride (IrF₄ ) and iridium difluoride (IrF₂ ) by Ir-F bond cleavage or F₂ elimination. In addition, IrF₅ can be reversed to IrF₆ by adding a F atom when exposed to blue-light (λ=470 nm) irradiation. Laser irradiation (λ=266 nm) of IrF₄ also generated

SUBMITTER: Lu Y 

PROVIDER: S-EPMC9310635 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature