PH-Stable Eu- and Tb-organic-frameworks mediated by an ionic liquid for the aqueous-phase detection of 2, 4, 6-trinitrophenol (TNP). Issue 44 (30th October 2017)

• Record Type: Journal Article
• Authors: Qin, Jian-Hua; Wang, Hua-Rui; Han, Min-Le; Chang, Xin-Hong; Ma, Lu-Fang
• Is Part Of: Dalton transactions. Volume 46:Issue 44(2017)
• Page Start: 15434
• Page End: 15442
• Publication Date: 2017-10-30
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c7dt03433d
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : pH-Stable Eu- and Tb-organic-frameworks mediated by ionic liquids for the aqueous-phase detection of 2, 4, 6-trinitrophenol (TNP). Abstract : Two pH-stable luminescent metal–organic frameworks (LMOFs), {[Ln2 (L)2 (OH)(HCOO)]·[H2 O]} n (Ln = Eu1, Tb2 ), based on a new π-conjugated organic building block involving both carboxylate and terpyridine groups were rationally synthesized under a combination of hydro/solvothermal and ionothermal conditions (H2 L = 4′-(4-(3, 5-dicarboxylphenoxy)phenyl)-4, 2′:6′, 4′′-terpyridine).1 and2 are isostructural and feature noninterpenetrated open 3D condensed frameworks constructed by rod-shaped lanthanide-carboxylate building units. Their excellent water-stability and pH-stability allow them to be used in aquatic systems.1 and2 both exhibit selective and sensitive aqueous phase detection of the well-known nitroaromatic explosive environmental pollutant 2, 4, 6-trinitrophenol (TNP), which is highly desirable for practical applications. The presence of a free pyridine group on the LMOF particle surface was strategically utilized for the purpose of exclusive TNP-sensing.