Post-Synthetic Cyano-ferrate(II) Functionalization of a Metal-Organic Framework, NU-1000

Chung Wei Kung*, Ken Ichi Otake, Riki J. Drout, Subhadip Goswami, Omar K. Farha, Joseph T. Hupp*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Starting with ferrocyanide ions in acidic aqueous solution, cyano-ferrate(II) species are post-synthetically grafted to the nodes of a mesoporous zirconium-based MOF, NU-1000. As indicated by single-crystal X-ray crystallography, grafting occurs by substitution of cyanide ligands by node-based hydroxo and oxo ligands rather than by substitution of node aqua ligands by cyanide ligands as bridges between Fe(II) and Zr(IV). The installed moieties yield a broad absorption band that is tentatively ascribed to iron-to-zirconium charge transfer. Consistent with Fe(III/II) redox activity, a modest fraction of the installed iron complexes are directly electrochemically addressable.

Original languageEnglish (US)
Pages (from-to)4936-4942
Number of pages7
JournalLangmuir
Volume39
Issue number14
DOIs
StatePublished - Apr 11 2023

ASJC Scopus subject areas

  • Condensed Matter Physics
  • General Materials Science
  • Spectroscopy
  • Surfaces and Interfaces
  • Electrochemistry

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