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

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

来源：Science China Chemistry, 2018, 61(7): 830-835.

DOI：10.1007/s11426-018-9234-2

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

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 center dot 2Cl reacted with aldehyde 2 center dot Cl to quantitatively yield six-armed precursor 3 center dot 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 H-2 in both aqueous (homogeneous) and organic (heterogeneous) media.

• 出版日期2018-7
• 单位复旦大学