Structural characterization of framework-gas interactions in the metal-organic framework Co₂(dobdc) by in situ single-crystal X-ray diffraction.

ABSTRACT: The crystallographic characterization of framework-guest interactions in metal-organic frameworks allows the location of guest binding sites and provides meaningful information on the nature of these interactions, enabling the correlation of structure with adsorption behavior. Here, techniques developed for in situ single-crystal X-ray diffraction experiments on porous crystals have enabled the direct observation of CO, CH₄, N₂, O₂, Ar, and P₄ adsorption in Co₂(dobdc) (dobdc^4- = 2,5-dioxido-1,4-benzenedicarboxylate), a metal-organic framework bearing coordinatively unsaturated cobalt(ii) sites. All these molecules exhibit such weak interactions with the high-spin cobalt(ii) sites in the framework that no analogous mol

SUBMITTER: Gonzalez MI 

PROVIDER: S-EPMC5580307 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature