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Updated: May 28, 2025
Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
Published on: May 12, 2023
A single-crystal 3D Zn-tetrathiolate connected metal-organic framework
Jian-Rong Li1, Jieying Hu1, Long Jiang2
1School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China. junhe@gdut.edu.cn.
Abstract:
Due to thiolate's fast and robust coordination, crystallographically resolved thiolate-ligated metal-organic frameworks (MOFs) are hard to obtain. Following the previous success of the masked synthetic strategy to achieve single-crystal Pb-thiolate connected MOFs, thioester-protected hexathiotriphenylene (HVaTT) was employed in this work to assemble with a Zn(II) centre to yield the first example of a first-row transition-metal based crystallographically resolved metal-tetrathiolate connected MOF, HTT-Zn. HTT-Zn features a 3D anionic framework connected by tetrahedral [ZnS4] nodes with 3-fold interpenetration and windmill-like topology. Thanks to the anionic nature, HTT-Zn demonstrates a fast colorimetric response (from yellow to black) to the positively charged toxic pollutant, paraquat, and potentially serves as a naked-eye sensor for paraquat. Isolation of HTT-Zn proves masked synthesis as a general approach and adds a new dimension to explore metal-thiolate-based MOFs.
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