Water-stable fluorinated metal–organic frameworks (F-MOFs) with hydrophobic properties as efficient and highly active heterogeneous catalysts in aqueous solution

Abstract

Two new fluorinated MOFs were synthesized, characterized and used as heterogeneous catalysts toward the Knoevenagel condensation reaction.

Improving MOF stability: approaches and applications

“…or other hydrophobic substituent groups into organic linkers is also an efficient means for enhancing MOFs' moisture/water resistance. [102][103][104][105][106][107][108][109][110][111][112][113][114] Jiang's group reported a copper-based MOF, USTC-6, based on 4,4 0 -(per-uoropropane-2,2-diyl)diphthalic acid. 109 Although most Cu-O coordination bonds in MOFs are vulnerable to hydrolysis, USTC-6 exhibits exceptional tolerance to water and aqueous solutions in the pH range 2 to 10 on account of the hydrophobicity of the corrugated -CF 3 surface.…”

Mechanistic considerations and characterization of ammonia-based catalytic active intermediates of the green Knoevenagel reaction of various benzaldehydes

“…He isolated catalytic intermediates and as a result of this laid the fundamentals of "organocatalysis" (6,7). Unfortunately, the impact of his research has not yet been valued by everyone (8)(9)(10)(11). Organocatalysis is the catalysis of reactions with small organic molecules and generally seen as a more environmentally friendly form of catalysis opposed to for example (toxic) transition metal catalysts (12,13).…”

Development of a PVC Membrane Potentiometric Sensor with Low Detection Limit and Wide Linear Range for the Determination of Maprotiline in Pharmaceutical Formulations

“…Metal‐Organic Frameworks (MOFs), porous crystalline hybrid materials composed of metal centers and electron‐donating multifunctional organic ligands, [26] were firstly reported by Yaghi et al in 1995 [27] . Since then, MOFs have been used in many applications such as gas storage, [28] drug carriers, [29] sensors, [30,31] catalysis [32,33] and adsorption and separation [34–37] due to their great physical and chemical properties [38] . The redox and catalytically active sites formed by the active metals and/or ligands lead to electrochemical sensing capabilities of MOFs [39–42] .…”