Issue 4, 2019, Issue in Progress

New functionalized MIL-53(In) solids: syntheses, characterization, sorption, and structural flexibility

Abstract

The syntheses and characterization of a series of functionalized MIL-53(In) solids have been reported. Chemical groups with variations in steric hindrance and chemical nature (–(OH)2, –Br or –NO2 groups) were introduced through the terephthalate linker to modify the pore surface. Single crystal X-ray diffraction data, N2 adsorption–desorption isotherms, and infrared spectra were systematically investigated to explore the impact of the functional groups grafted onto the organic linker on the dynamic behaviour of these highly flexible hybrid porous frameworks. Owing to the distinctive steric hindrance and chemical nature, the different substituents can influence the interactions between the framework and the trapped molecules, further influencing the flexibility of the materials. Dihydroxyl modified MIL-53(In) exhibits no nitrogen accessible porosity. Notably, functionalization by –Br and –NO2 groups leads to the different capabilities of the corresponding solids to accommodate N2 molecules.

Graphical abstract: New functionalized MIL-53(In) solids: syntheses, characterization, sorption, and structural flexibility

Supplementary files

Article information

Article type
Paper
Submitted
15 Oct 2018
Accepted
28 Dec 2018
First published
15 Jan 2019
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2019,9, 1918-1928

New functionalized MIL-53(In) solids: syntheses, characterization, sorption, and structural flexibility

L. Wu, G. Chaplais, M. Xue, S. Qiu, J. Patarin, A. Simon-Masseron and H. Chen, RSC Adv., 2019, 9, 1918 DOI: 10.1039/C8RA08522F

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