New Microporous Lanthanide Organic Frameworks. Synthesis, Structure, Luminescence, Sorption, and Catalytic Acylation of 2-Naphthol

Abstract

<jats:p>New metal-organic frameworks (MOF) with lanthanum(III), cerium(III), neodymium(III), europium(III), gadolinium(III), dysprosium(III), and holmium(III)] and the ligand precursor 1,3,5-tris(4-carboxyphenyl)-2,4,6-trimethylbenzene (H3L) were synthesized under solvothermal conditions. Single crystal x-ray analysis confirmed the formation of three-dimensional frameworks of [LnL(H2O)2]n·xDMF·yH2O for Ln = La, Ce, and Nd. From the nitrogen sorption experiments, the compounds showed permanent porosity with Brunauer-Emmett-Teller (BET) surface areas of about 400 m2/g, and thermal stability up to 500 °C. Further investigations showed that these Ln-MOFs exhibit catalytic activity, paving the way for potential applications within the field of catalysis.</jats:p>

Mesitylene Tribenzoic Acid as a Linker for Novel Zn/Cd Metal-Organic Frameworks

“…The first MOF based on mesitylene tribenzoic acid (H 3 MTB) was reported in 2010 and contained Zn as a metal [42]. Since then, several other structures bearing Zn, Zr, or lanthanides have been obtained [25,[43][44][45][46][47][48][49][50], however, to the best of our knowledge, no Cd (II) structures with H 3 MTB as a linker have been presented so far.…”

“…In the past few years, our interest in the field has led to several new Metal-Organic Frameworks, as well as a number of organic linkers that can be used in MOF design [24][25][26][27][28][29][30][31][32][33][34][35][36]. With the goal of obtaining novel MOFs with permanent porosity which have the potential to be used for gas storage, in this work we synthesized and characterized three new Metal-Organic Frameworks, obtained using Zn (II) and Cd (II) as metal sources and 2,4,6-tris(4carboxyphenyl)-1,3,5-trimethylbenzene (mesitylene tribenzoic acid-H 3 MTB) an organic linker which to this day, has only seen limited use in MOF design.…”

Nitrogen-Based Linkers with a Mesitylene Core: Synthesis and Characterization

“…Our continued interest in the field of azole derivatives [ 27 , 28 , 29 , 30 , 31 ], as well as MOF design [ 32 , 33 , 34 ], led to the synthesis and characterization of four new azole-based linkers with a mesitylene core.…”

Electrochemistry, Electrodeposition, and Photoluminescence of Eu (III)/Lanthanides (III) on Terpyridine-Functionalized Ti Nanospikes

“…To achieve better roles of Ln elements, the studies on Ln elements include Ln coordination chemistry, electrochemical Ln redox reactions, luminescent materials, and selective recovery (for recycling of precious elements) by electrodeposition [11][12][13][14][15][16][17][18][19][20][21][22][23]. Bejan et al synthesized three-dimensional Ln-organic frameworks of [LnL (H 2 O) 2 ] n •DMF•yH 2 O with a surface area of about 400 m 2 /g by the solvothermal method and demonstrated as a catalyst in acylation reaction of 2-naphthol with acetic anhydride [11]. Lu et al synthesized Tb (III) and Eu (III)-organic complex-doped silica nanoparticles with high luminescent properties and embedded in transparent membranes by the electrospinning method for their applications to fluorescent clothing, counterfeiting, and labels [14].…”