Anchoring of Diphenylphosphinyl Groups to NH2-MIL-53 by Post-Synthetic Modification

Sonia Castellanos*, Karthick Babu Sai Sankar Gupta, Alexey Pustovarenko, Alla Dikhtiarenko, Maxim Nasalevich, Pedro Atienzar, Hermenegildo García, Jorge Gascon Sabate, Freek Kapteijn

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Incorporation of new functionalities into metal-organic frameworks (MOFs) by post-synthetic modification is a most attractive strategy for attaining the desired properties without risking destruction of the crystalline structure chosen for the aimed application. In this work the amine group in NH2-MIL-53(Al) was used as anchoring point for the diphenylphosphinyl (Ph2PO-) moiety. The success of the derivatization was confirmed by 31P MAS NMR and DRIFT spectroscopic studies. A newly synthesized reference linker bearing the same phosphinic amide functional group was used to assist in the MOF characterization. The introduction of the bulky diphenylphosphinyl group stabilizes the large-pore form of the MOF and leads to changes in the optical properties as a consequence of the electronic influence of the PO group. The approach described here is relevant for the preparation of novel phosphorus-containing MOFs.

Original languageEnglish (US)
Pages (from-to)4648-4652
Number of pages5
JournalEuropean Journal of Inorganic Chemistry
Volume2015
Issue number28
DOIs
StatePublished - Oct 1 2015

Keywords

  • Fluorescence
  • Linkers
  • Metal-organic frameworks
  • Synthesis design

ASJC Scopus subject areas

  • Inorganic Chemistry

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