Adsorptive-dissolution of O₂ into the potential nanospace of a densely fluorinated metal-organic framework.

ABSTRACT: Nanoporous solids, including metal-organic frameworks (MOFs), have long been known to capture small molecules by adsorption on their pore surfaces. Liquids are also known to accommodate small molecules by dissolution. These two processes have been recognized as fundamentally distinct phenomena because of the different nature of the medium-solids and liquids. Here, we report a dissolution-like gas accommodation so-called "adsorptive-dissolution" behavior in a MOF (PFAC-2) with pores densely filled with perfluoroalkyl chains. PFAC-2 does not have solvent-accessible voids; nevertheless, it captures oxygen molecules without changing the framework structure, analogous to molecular dissolution into liquids. Moreover, we demonstrate the selective capture of O₂ by PFAC-2 in a mixture of

SUBMITTER: Kusaka S 

PROVIDER: S-EPMC11584617 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature