Affordable Access

deepdyve-link
Publisher Website

Flexibility and sorption selectivity in rigid metal-organic frameworks: the impact of ether-functionalised linkers.

Authors
  • Henke, Sebastian
  • Schmid, Rochus
  • Grunwaldt, Jan-Dierk
  • Fischer, Roland A
Type
Published Article
Journal
Chemistry - A European Journal
Publisher
Wiley (John Wiley & Sons)
Publication Date
Dec 27, 2010
Volume
16
Issue
48
Pages
14296–14306
Identifiers
DOI: 10.1002/chem.201002341
PMID: 21140495
Source
Medline
License
Unknown

Abstract

The functionalisation of well-known rigid metal-organic frameworks (namely, [Zn(4)O(bdc)(3)](n), MOF-5, IRMOF-1 and [Zn(2)(bdc)(2)(dabco)](n); bdc = 1,4-benzene dicarboxylate, dabco = diazabicyclo[2.2.2]octane) with additional alkyl ether groups of the type -O-(CH(2))(n)-O-CH(3) (n = 2-4) initiates unexpected structural flexibility, as well as high sorption selectivity towards CO(2) over N(2) and CH(4) in the porous materials. These novel materials respond to the presence/absence of guest molecules with structural transformations. We found that the chain length of the alkyl ether groups and the substitution pattern of the bdc-type linker have a major impact on structural flexibility and sorption selectivity. Remarkably, our results show that a high crystalline order of the activated material is not a prerequisite to achieve significant porosity and high sorption selectivity.

Report this publication

Statistics

Seen <100 times