Engineering catalytic coordination space in a chemically stable Ir-porphyrin MOF with a confinement effect inverting conventional Si-H insertion chemoselectivity.

ABSTRACT: An iridium-porphyrin ligand, Ir(TCPP)Cl (TCPP = tetrakis(4-carboxyphenyl)porphyrin), has been utilized to react with HfCl₄ to generate a stable Ir(iii)-porphyrin metal-organic framework of the formula [(Hf₆(μ₃-O)₈(OH)₂(H₂O)₁₀)₂(Ir(TCPP)Cl)₃]·solvents (Ir-PMOF-1(Hf)), which possesses two types of open cavities (1.9 × 1.9 × 1.9 and 3.0 × 3.0 × 3.0 nm³) crosslinked through orthogonal channels (1.9 × 1.9 nm²) in three directions. The smaller cavity is surrounded by four catalytic Ir(TCPP)Cl walls to form a confined coordination space as a molecular nanoreactor, while the larger one facilitates reactant/product feeding and release. Therefore, the porous Ir-PMOF-1

SUBMITTER: Wang Y 

PROVIDER: S-EPMC5299935 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature