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A Water-Stable Cl@Ag 14 Cluster Based Metal-Organic Open Framework for Dichromate Trapping and Bacterial Inhibition

A Water-Stable Cl@Ag 14 Cluster Based Metal-Organic Open Framework for Dichromate Trapping and Bacterial Inhibition

Shan-Shan Zhang, Xin Wang, Hai-Feng Su, Lei Feng, Zhi Wang, Wen-Qiang Ding, Vladislav A Blatov, Mohamedally Kurmoo, Chen-Ho Tung, Di Sun, Lan-Sun Zheng

Inorg Chem. 2017 Oct 2;56(19):11891-11899.

PMID: 28933555

Abstract:

Decoding the principles of cluster-based framework assembly at the molecular level remains a persistent challenge. Herein, we isolated and characterized a novel water-stable three-dimensional (3D) metal-organic open framework [Cl@Ag14(cPrC≡C)10Cl2·(p-TOS)·1/3H2O]n (SD/Ag14, cPrC≡CH = cyclopropylacetylene; p-TOS = p-toluenesulfonate), which contains a chloride-templated Ag14 cluster as building block. For SD/Ag14, one chloride acts as the template to shape the Ag14 cluster and the other bridges the clusters to a 3D pcu-h open framework. As revealed by high resolution electrospray mass spectrometry (HRESI-MS), the Ag12-Ag14 species are potential cluster-based intermediates to the 3D pcu-h framework, which authenticates a preconceived idea that the 3D framework is hierarchically assembled from the silver clusters as observed in solid state. Interestingly, SD/Ag14 can be used effectively to remove the environmental pollutant Cr2O72- from wastewater through anion exchange in a single-crystal-to-single-crystal (SC-SC) transformation fashion. Furthermore, SD/Ag14 exhibits excellent antibacterial activity against Staphylococcus aureus, thus making it a potential antibacterial agent.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP16836956	Silver p-toluenesulfonate		16836-95-6	Price

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