Metal organic framework-supported N-heterocyclic carbene palladium complex: a highly efficient and reusable heterogeneous catalyst for Suzuki-Miyaura C-C coupling reaction

Mehrnaz Bahadori, Shahram Tangestaninejad, Majid Moghadam, Valiollah Mirkhani, Adam Mechler, Iraj Mohammadpoor-Baltork, Farnaz Zadehahmadi

Research output: Contribution to journalArticleResearchpeer-review

50 Citations (Scopus)

Abstract

A metal organic framework-supported N-heterocyclic carbene (NHC) was prepared by post-synthetic modification (PSM) of NH2-MIL-101(Cr). The amine group in the NH2-MIL-101(Cr) was modified via condensation with 1,3,5-trichlorotriazine (TCT) providing a precursor that then reacted with N-methylimidazole to produce the MIL-101(Cr)-NH2-bis(NHC). The N-heterocyclic carbene moieties were coordinated with palladium in situ in the porous matrix. The structure of MIL-101(Cr)-NH2-bis(NHC)-Pd (MIL-NHC-Pd) was confirmed by XRD and FT-IR spectroscopy. Electron microscopy was used to characterize the morphology of the resulting material. XPS and ICP confirmed surface composition while Brauner–Emmett–Teller (BET) analysis was used to define the specific surface area. On testing the catalytic activity, cross-coupling reactions of phenylboronic acid and aryl halides proceeded successfully with MIL-NHC-Pd (0.067 mmol Pd/g) as a heterogeneous catalyst. The catalyst was recovered from the reaction mixture by simple filtration and reused for 15 times without leaching into solution or any loss of activity.

Original languageEnglish
Pages (from-to)102-111
Number of pages10
JournalMicroporous and Mesoporous Materials
Volume253
DOIs
Publication statusPublished - 15 Nov 2017
Externally publishedYes

Keywords

  • Metal organic framework
  • MIL-101(Cr)
  • N-heterocyclic carbene
  • Suzuki-Miyaura reaction

Cite this