A Route to the Synthesis of Trivalent Transition‐Metal Porous Carboxylates with Trimeric Secondary Building Units

Abstract

A solvothermal route based on metal(iii) trimeric secondary building units (SBUs) is reported along with methods allowing the crystal structures of hybrid organic-inorganic structures to be predicted. The association of a chromium(iii) trimeric SBU and 1,3,5-benzenetricarboxylate gives a micro-and mesoporous solid. The simulated crystal-structure solution matches the experimental X-ray pattern.

Biologically derived metal organic frameworks

“…[40], [41] v. Fluorescent ligands can also be used in MOFs that are intended for biological applications, due to their ability to perform real-time measurements. [7], [42][43][44][45][46][47][48][49] For MOFs to be applicable for in vivo administration, the components of their framework should not intervene in the body's cycle, and ideally be excreted from the body. [43] Some examples of exogenous MOFs found in biomedical applications are magnesium-2,5-dihydroxoterephthalate [CPO-27 (Mg)], [50] Fe III polycarboxlyates [MIL-100-Fe III ], [51] and zinc adeninate-4,4'-biphenyldicarboxylate (bio-MOF-1).…”

Oxidation of Ethylbenzene Using Nickel Oxide Supported Metal Organic Framework Catalyst

“…EB oxidation was carried out at 150 °C for 5 different reaction times (6,8,10,15, and 24 h) with 0.10 Ni-MOF-5 catalyst and 5.5 mL/min O 2 flow. The results are displayed in Figure 7.…”

“…[1][2][3][4][5] In recent years, ongoing efforts have been made to explore potential applications of MOFs in various fields, including gas adsorption, separation, and storage; [6][7][8][9][10][11] in drug delivery; 12 sensing; 13,14 and enantio-selective catalysis. [15][16][17] MOFs are promising catalysts because the active sites of MOFs can be tailored in a systematic way for specific catalytic applications. 18 In addition, as catalysts, MOFs not only have the single-site active species characteristics of homogenous catalysts (which make them more attractive for applications in the liquid phase), but also have the advantages of easy separation and recycling (a required property of a typical heterogeneous catalyst).…”

Crystal growth of MOF-5 using secondary building units studied by in situ atomic force microscopy

“…[1][2][3][4] Considerable effort has been expended to optimise the synthesis of these materials with regards to numerous factors including: yield, crystal size, morphological control, the rate of product formation and the synthesis temperature. One such approach to the synthesis of MOFs is the so called "controlled secondary building unit (SBU) approach" (CSA) introduced by Serre et al 5 The rationale behind the development of this approach was that MOF syntheses could be speeded up if the metal components added to the reaction solution were already preassembled to resemble the SBUs of the final crystalline MOF. This method has succeeded in decreasing reaction times and temperatures for several MOFs,[5][6][7] in addition to proving to be very useful in the synthesis of nanoparticles, 8 thin films, 9 and producing MOF homologues with new metal content.…”

“…5 The rationale behind the development of this approach was that MOF syntheses could be speeded up if the metal components added to the reaction solution were already preassembled to resemble the SBUs of the final crystalline MOF. This method has succeeded in decreasing reaction times and temperatures for several MOFs, [5][6][7] in addition to proving to be very useful in the synthesis of nanoparticles, 8 thin films, 9 and producing MOF homologues with new metal content. 6 One of the questions arising from the CSA methodology is whether the SBU remains intact during synthesis.…”