Insights into Functionalization of Metal-Organic Frameworks Using In Situ NMR Spectroscopy
Journal article, 2018

Postsynthetic reactions of metal-organic frameworks (MOFs) are versatile tools for producing functional materials, but the methods of evaluating these reactions are cumbersome and destructive. Here we demonstrate and validate the use of in situ NMR spectroscopy of species in the liquid state to examine solvent-assisted ligand exchange (SALE) and postsynthetic modification (PSM) reactions of metal-organic frameworks. This technique allows functionalization to be monitored over time without decomposing the product for analysis, which simplifies reaction screening. In the case of SALE, both the added ligand and the ligand leaving the framework can be observed. We demonstrate this in situ method by examining SALE and PSM reactions of the robust zirconium MOF UiO-67 as well as SALE with the aluminum MOF DUT-5. In situ NMR spectroscopy provided insights into the reactions studied, and we expect that future studies using this method will permit the examination of a variety of MOF–solute reactions.

Author

Ning Yuan

Swedish University of Agricultural Sciences (SLU)

Stockholm University

Tamara L. Church

Stockholm University

Erik G. Brandt

Stockholm University

Niklas Hedin

Stockholm University

Xiaodong Zou

Stockholm University

Diana Bernin

Stockholm University

Chalmers, Chemistry and Chemical Engineering, Chemical Technology, Chemical Engineering Design

Scientific Reports

2045-2322 (ISSN)

Vol. 8 1 17530

Subject Categories

Inorganic Chemistry

Polymer Technologies

Organic Chemistry

DOI

10.1038/s41598-018-35842-1

More information

Latest update

12/11/2018