A stable metal-covalent-supramolecular organic framework hybrid: enrichment of catalysts for visible light-induced hydrogen production

Xiong Fei Li, Shang Bo Yu, Bo Yang, Jia Tian, Hui Wang, Dan Wei Zhang, Yi Liu, Zhan Ting Li*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

22 Citations (Scopus)

Abstract

Cubic metal-covalent-supramolecular organic framework (MCSOF-1) hybrid has been created from the reaction of two molecular components and subsequent co-assembly with cucurbit[8]uril (CB[8]) in water. In the presence of CB[8], [Ru(bpy)3]2+ -based acylhydrazine 1·2Cl reacted with aldehyde 2·Cl to quantitatively yield six-armed precursor 3·8Cl through the generation of MCSOF-1. MCSOF-1 combines the structural features of metal-, covalent- and supramolecular organic frameworks. Its periodicity in water and in the solid state was confirmed by synchrotron X-ray scattering and diffraction experiments. MCSOF-1 could enrich discrete anionic polyoxometalates (POMs), maintain periodicity in acidic medium, and remarkably facilitate visible light-induced electron transfer from its [Ru(bpy)3]2+ units to enriched POMs, leading to enhanced catalysis of the POMs for the reduction of proton to H2 in both aqueous (homogeneous) and organic (heterogeneous) media.

Original languageEnglish
Pages (from-to)830-835
Number of pages6
JournalScience China Chemistry
Volume61
Issue number7
Early online date11 Apr 2018
DOIs
Publication statusPublished - 1 Jul 2018

Keywords

  • cucurbitu[8]ril
  • hydrogen production
  • photocatalysis
  • self-assembly
  • supramolecular organic framework

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