Hydroxometalates from anion exchange reactions of [BF4] - based ionic liquids: Formation of [M(OH)6)]2- (M = Ti, Zr) and [Zr(OH)5]-

  • Hechun Lin*
  • , Peter W. De Oliveira
  • , Volker Huch
  • , Michael Veith
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The hydrolysis reactions of Ti(OiPr)4 in the presence of different ionic liquids using ethanol as solvent were investigated. The reaction in the presence of [BMIM][BF4] gave rise to the anion exchange reaction product [BMIM]2[Ti(OH)6] in moderate yield. On the contrary, Ti7O4(OEt)20 was obtained in ionic liquids with other anions. The anion exchange reaction has a broad capacity for group functionalization. It can be used to synthesize both imidazolium and pyridium [Ti(OH)6]2- salts. In contrast, under the similar reaction conditions, the reactions of zirconium alcoholate gave rise to [Zr(OH)5]- or [Zr(OH)6] 2- intermediates depending on the counter cations. Under the solvothermal reaction conditions, [PF6]- based ionic liquids can also undertake the similar anion exchange reactions.

Original languageEnglish
Pages (from-to)6518-6523
Number of pages6
JournalChemistry of Materials
Volume22
Issue number24
DOIs
StatePublished - 28 Dec 2010
Externally publishedYes

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