Enhanced stability and colorimetric detection on Ag(i) ions of a methylthio-functionalized Zn(ii) metal–organic framework. Issue 15 (9th April 2021)

• Record Type: Journal Article
• Authors: Zhong, Yuan-Hui; He, Yonghe; Zhou, Hua-Qun; Zheng, Sai-Li; Zeng, Qi; Chung, Lai-Hon; Liao, Wei-Ming; He, Jun
• Is Part Of: Journal of materials chemistry. Volume 9:Issue 15(2021)
• Page Start: 5088
• Page End: 5092
• Publication Date: 2021-04-09
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d1tc01043c
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : A methylthio-functionalized metal–organic framework shows high stability, sensitivity (as low as 30 ppm) and distinguished color (dark brown) sensing towards Ag(i ) ions by MOF-crystal colorimetry. Abstract : A tripodal linker with six pendant methylthio (–SCH3 ) groups was crystallized with Zn(ii ) ions to provide metal–organic framework (MOF) crystals, namely NOTT-6SMe-Zn, bearing three types of cage-like pores. NOTT-6SMe-Zn gives a highly distinguished color (dark brown) upon the introduction of Ag(i ) ions, while it is insensitive towards other noble and transition metal ions. It exhibits a distinctly improved colorimetric detection of Ag(i ) ions ( e.g. as low as 30 ppm) and stability than that of non-methylthio functionalized NOTT-Zn. Better sensitivity is ascribed to the facile combination of soft sulfur atom and Ag(i ) ions.