A Metal–Organic Framework Stabilizes an Occluded Photocatalyst

Abstract

Occlusion and confinement of a [Ru(bpy)3 ]Cl2 photocatalyst in the cavities of a γ-cyclodextrin (CD) metal-organic framework (MOF) does not affect the catalyst's activity but prevents its photodegradation. Additionally, the OH(-) ions and/or ROH groups present inside the CD-MOF act as electron donors and complete the catalytic cycle. The occlusion approach is a technically straightforward alternative to the covalent modification of MOF scaffolds with catalytic units.

Emerging Cubic Chirality in γCD‐MOF for Fabricating Circularly Polarized Luminescent Crystalline Materials and the Size Effect

“…Similar absorption bands of metal‐to‐ligand charge transfer (MLCT) at 375–475 nm were observed for both Ru complexes (Figure b,c; Supporting Information, Figures S3, S4) . After the encapsulation into γCD‐MOF, the MLCT bands remained unchanged.…”

Electronic effects of ligand substitution on metal–organic framework photocatalysts: the case study of UiO-66

“…[7][8][9][10] Metal-organic frameworks (MOFs), which are a class of crystalline materials constructed from inorganic building units and organic linkers, have been garnering considerable research interest due to their distinctive physicochemical properties. [21][22][23][24][25] For example, Garcia et al have studied MOF-5 as a semiconductor for photodegradation of phenol in aqueous solutions. [21][22][23][24][25] For example, Garcia et al have studied MOF-5 as a semiconductor for photodegradation of phenol in aqueous solutions.…”

Direct Visualization of Pyrrole Reactivity upon Confinement within a Cyclodextrin Metal–Organic Framework

“…Rb‐CD‐MOF can be prepared as millimeter‐sized, colorless crystals by direct reaction of RbOH and CD . Rb‐CD‐MOF crystals have already proven to be robust enough to retain their original crystallinity upon impregnation with molecular guests or formation of metal nanoclusters inside their channels . This robustness was expected to simplify the crystallographic study and physical characterization.…”