Post-synthesis alkoxide formation within metal-organic framework materials: A strategy for incorporating highly coordinatively unsaturated metal ions

Karen L. Mulfort, Omar K. Farha, Charlotte L. Stern, Amy A. Sarjeant, Joseph T. Hupp

Research output: Contribution to journalArticle

251 Citations (Scopus)

Abstract

A new noncatenated metal-organic framework containing pendant alcohol functionalities was synthesized. The alcohols were then post-synthetically converted to either lithium or magnesium alkoxides, with the incorporated metals anchored far from nodes or carboxylate functionalities. The metal alkoxide sites can be obtained stoichiometrically while maintaining the permanent porosity and large surface area of the parent hydroxylated material. The incorporated metal ions are found to induce an unusual pattern of binding energetics for H 2: isosteric heats of adsorption increase, rather than decrease, with increasing H 2 loading. Additionally, at 1 atm and 77 K, uptake (at least with low Li + loading) is increased by two hydrogen molecules per Li +.

Original languageEnglish
Pages (from-to)3866-3868
Number of pages3
JournalJournal of the American Chemical Society
Volume131
Issue number11
DOIs
Publication statusPublished - Mar 25 2009

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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