scholarly journals Green Synthesis of Symmetric Dimaleamic Acids from Dianilines and Maleic Anhydride: Behind New Bidentate Ligands for MOFs

2020 ◽  
Vol 3 (1) ◽  
pp. 92
Author(s):  
Julio C. Flores-Reyes ◽  
José L. Sosa-Juárez ◽  
Mayra Sánchez-Serratos ◽  
Perla Islas-Jácome ◽  
Atilano Gutiérrez-Carrillo ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Ring Opening ◽  
Metal Organic Frameworks ◽  
Water Ligand ◽  
Green Solvents ◽  
Bidentate Ligands ◽  
Metal Organic ◽  
Minimal Work ◽  
Work Up

We herein report the synthesis and characterization of six α,β-unsaturated dicarboxylic acid ligands with different phenyl spacers, and two ligands with a biphenyl and anthraquinone spacers. All these dimaleamic acids were synthesized in 16 to 99% yields via a base-catalyzed maleimide ring opening in water (ligand 2), or by a di-N-acylation from the corresponding diamines and maleic anhydride in acetic acid (ligands 4, 6, 8, 10, 12, 14 and 16). These reactions were performed using green solvents, while requiring minimal work up procedures, making them suitable alternatives to access these types of bidentate ligands quickly, which can be used to fabricate new metal-organic frameworks (MOFs).

Synthesis and Characterization of Lanthanide Metal-Organic Frameworks with Perfluorinated Linkers

2016 ◽  
Vol 98 ◽  
pp. 70-74
Author(s):  
Andrius Laurikėnas ◽  
Jurgis Barkauskas ◽  
Aivaras Kareiva
Keyword(s):  
Metal Organic Frameworks ◽  
Aqueous Media ◽  
Xrd Analysis ◽  
X Ray Diffraction ◽  
Lanthanide Elements ◽  
Diffusion Controlled ◽  
Benzenedicarboxylic Acid ◽  
Metal Organic ◽  
Lanthanide Metal

In this study, lanthanide elements (Ln3+) and 2,3,5,6-tetrafluoro-1,4-benzenedicarboxylic acid (TFBDC) based metal-organic frameworks (MOFs) were synthesized by precipitation and diffusion-controlled precipitation methods. Powders insoluble in aqueous media and polar solvents were obtained. The microstructure and properties of Ln3+ MOFs were evaluated and discussed. X-ray diffraction (XRD) analysis, infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and fluorescence spectroscopy (FLS) were carried out to characterize Ln3+ MOF's crystallinity, the microstructure, chemical composition and optical properties.

scholarly journals A Comparison of Barostats for the Mechanical Characterization of Metal–Organic Frameworks

2015 ◽  
Vol 11 (12) ◽  
pp. 5583-5597 ◽  
Author(s):  
S.M.J. Rogge ◽  
L. Vanduyfhuys ◽  
A. Ghysels ◽  
M. Waroquier ◽  
T. Verstraelen ◽  
...  
Keyword(s):  
Mechanical Characterization ◽  
Metal Organic Frameworks ◽  
Metal Organic

scholarly journals STUDY OF SYNTHESIS AND CHARACTERIZATION OF METAL-ORGANIC FRAMEWORKS MOF-5 AS HYDROGEN STORAGE MATERIAL

2016 ◽  
Vol 12 (1) ◽  
pp. 14
Author(s):  
Prapti Rahayu ◽  
Witri Wahyu Lestari
Keyword(s):  
Hydrogen Storage ◽  
Metal Organic Frameworks ◽  
Synthesis Method ◽  
High Porosity ◽  
Hydrogen Storage Material ◽  
Storage Material ◽  
Good Thermal Stability ◽  
Metal Organic ◽  
Organic Linker

<p>Metal-organic frameworks (MOFs) are porous coordination polymer containing bi-or polidentate organic linker coordinated with inorganic part, such as metal oxide cluster or metal cation as node which called as secondary building unit (SBU) to form infinite structure. Due to high porosity and surface area, good thermal stability as well as the availability of unsaturated metal center or the linker influence attracts the interaction with gases, thus MOFs have potential to be applied as hydrogen storage material. One type of MOFs that have been widely studied is [Zn<sub>4</sub>O(benzene-1,4-dicarboxylate)<sub>3</sub>], namely, MOF-5.Various synthesis method have been developed to obtain optimum results. Characterization of MOF-5 from various synthesis method such as crystallinity, capacity, stability, and quantum dot behavior of MOF-5 have been summarized in this review.</p>

Porphyrins functionalized by quaternary pyridinium units

2013 ◽  
Vol 17 (12) ◽  
pp. 1139-1156 ◽  
Author(s):  
Beata Girek ◽  
Wanda Sliwa
Keyword(s):  
Metal Ions ◽  
Singlet Oxygen ◽  
Organic Materials ◽  
Metal Organic Frameworks ◽  
Free Base ◽  
Cationic Porphyrins ◽  
Manganese Porphyrins ◽  
Fourth Part ◽  
Metal Organic

In this review, free-base and metalloporphyrins, functionalized on meso-positions by quaternary pyridinium units, also referred to as cationic porphyrins, are presented. The article consists of five parts. In the first part free-base porphyrins are described, especially taking account on generation of singlet oxygen; next parts concern metalloporphyrins. The second and third parts deal with zinc and manganese porphyrins, respectively; in the fourth part copper, palladium, and platinum porphyrins are presented. In the fifth part, describing porphyrins with various metal ions an attention is paid to porphyrin metal-organic frameworks (MOFs) and metal-organic materials (MOMs) in which metalloporphyrins are immobilized; syntheses and characterization of obtained products are shown.

scholarly journals Quantum Chemical Characterization of Structural Single Fe(II) Sites in MIL-Type Metal–Organic Frameworks for the Oxidation of Methane to Methanol and Ethane to Ethanol

ACS Catalysis ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 2870-2879 ◽  
Author(s):  
Jenny G. Vitillo ◽  
Aditya Bhan ◽  
Christopher J. Cramer ◽  
Connie C. Lu ◽  
Laura Gagliardi
Keyword(s):  
Quantum Chemical ◽  
Metal Organic Frameworks ◽  
Chemical Characterization ◽  
Oxidation Of Methane ◽  
Metal Organic

Spectroscopic characterization of metal ligation in trinuclear iron-μ3-oxo-based complexes and metal-organic frameworks

2019 ◽  
Vol 150 (17) ◽  
pp. 174707 ◽  
Author(s):  
Lauren Hanna ◽  
Pavel Kucheryavy ◽  
Nicole Lahanas ◽  
Jenny V. Lockard
Keyword(s):  
Metal Organic Frameworks ◽  
Spectroscopic Characterization ◽  
Metal Organic
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