NMR of Organic Linkers in MOFs and COFs DOI
Zhipeng Wang,

Simin Yu,

Bryan E. G. Lucier

et al.

Royal Society of Chemistry eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 91 - 152

Published: Dec. 18, 2024

Metal–organic frameworks (MOFs) and covalent-organic (COFs) are excellent candidates for many practical applications due to their advantageous features, such as high porosities selective guest adsorption. Organic ligands play a crucial role in both MOFs COFs versatile structural linkers sites introducing or tailoring functionalities. Comprehensive characterization of the environments organic is necessary further understanding structure–property relationships rational design future materials. Solid-state nuclear magnetic resonance (SSNMR) can provide detailed molecular-level information regarding chemical environment around target linker atom. Given that typically feature NMR-active nuclei 1H, 11B, 13C, 15N, 17O, 19F, 31P, SSNMR yield insights into these systems. be used ascertain number unique atoms crystal structure, map distribution linkers, investigate defects, probe ligand dynamics, study binding locations. In this chapter, we review reports COFs, along with effects paramagnetic centers near surrounding on spectra. The advantages drawbacks various methods approaches also discussed.

Language: Английский

Metal–organic frameworks for organic transformations by photocatalysis and photothermal catalysis DOI
Hong‐Guang Jin, Pengcheng Zhao, Yunyang Qian

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(18), P. 9378 - 9418

Published: Jan. 1, 2024

Organic transformation by light-driven catalysis, especially, photocatalysis and photothermal denoted as photo(thermal) is an efficient, green, economical route to produce value-added compounds. In recent years, owing their diverse structure types, tunable pore sizes, abundant active sites, metal-organic framework (MOF)-based catalysis has attracted broad interest in organic transformations. this review, we provide a comprehensive systematic overview of MOF-based for First, the general mechanisms, unique advantages, strategies improve performance MOFs are discussed. Then, outstanding examples transformations over introduced according reaction type. addition, several representative advanced characterization techniques used revealing charge kinetics intermediates presented. Finally, prospects challenges field proposed. This review aims inspire rational design development materials with improved catalysis.

Language: Английский

Citations

59
Two-Dimensional Cu(II)-MOF with Lewis Acid–Base Bifunctional Sites for Chemical Fixation of CO2 and Bioactive 1,4-DHP Synthesis via Hantzsch Condensation DOI
Apu Saha, Arun Pal, Debolina Mukherjee

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(23), P. 10832 - 10842

Published: May 29, 2024

Five- and six-membered heterocycles containing nitrogen or oxygen have been considered as privileged scaffolds in organic chemistry the chemical industry because of their usage high-value commodities. Herein, we report a two-dimensional (2D) Cu(II)-based MOF catalyst, IITKGP-40, via strategic employment ample Lewis acid–base bifunctional sites (open metal nodes free pyrazine moieties) along pore wall. IITKGP-40 could convert toxic CO2 to cyclic carbonates an atom-economical manner under solvent-free conditions aromatic aldehyde bioactive 1,4-DHPs Hantzsch condensation. Exceptional catalytic performance (99%) turnover number mild reaction for fixation using sterically hindered styrene oxide, good-to-excellent yields wide range aldehydes toward 1,4-dihydropyridines (1,4-DHPs) make promising multipurpose heterogeneous catalyst. Moreover, demonstrate practical utility two biologically important drug molecules, diludine nitrendipine analogue, also synthesized. is recyclable at least three consecutive runs without significant loss activity, making it real-time applications.

Language: Английский

Citations

13
In situ growth of boronic acid-decorated metal-organic frameworks on chitosan microspheres for highly selective enrichment of cis-diol molecules DOI
Ting Zou,

Furong Tang,

Wenhao Li

et al.

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 140935 - 140935

Published: Feb. 1, 2025

Language: Английский

Citations

1
Achiral and chiral metal-organic frameworks (MOFs) as an efficient catalyst for organic synthesis DOI
Narendra Pal Singh Chauhan, Panneerselvam Perumal, Narendra Singh Chundawat

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 533, P. 216536 - 216536

Published: Feb. 26, 2025

Language: Английский

Citations

1
High‐Entropy Lanthanide‐Organic Framework as an Efficient Heterogeneous Catalyst for Cycloaddition of CO2 with Epoxides and Knoevenagel Condensation DOI

Siyang Jin,

Yu Fu, Kecheng Jie

et al.

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(39)

Published: May 10, 2024

Multimetallic synergistic effects have the potential to improve CO

Language: Английский

Citations

6
Bifunctional Metal‐Organic Nanoballs Featuring Lewis Acidic and Basic Sites as a New Platform for One‐Pot Tandem Catalysis DOI
Gaurav Verma, Sanjay Kumar,

Elliott R. Slaughter

et al.

ChemPlusChem, Journal Year: 2024, Volume and Issue: 89(8)

Published: April 5, 2024

The design and synthesis of polyhedra using coordination-driven self-assembly has been an intriguing research area for synthetic chemists. Metal-organic are a class intricate molecular architectures that have garnered significant attention in the literature due to their diverse structures potential applications. Hereby, we report Cu-MOP, bifunctional metal-organic cuboctahedra built 2,6-dimethylpyridine-3,5-dicarboxylic acid copper acetate at room temperature. presence both Lewis basic pyridine groups acidic sites imparts catalytic activity Cu-MOP tandem one-pot deacetalization-Knoevenagel/Henry reactions. effect solvent system time duration on yields reactions was studied, results illustrate promising these cuboctahedra, also known as nanoballs applications catalysis.

Language: Английский

Citations

3
Exploring the Dual Realm of Solvent-Responsive Structural Transformations and Semiconducting Properties of Six 1D Coordination Polymers DOI
Pintu Das,

Anupam Maiti,

Supravat Ghosh

et al.

Crystal Growth & Design, Journal Year: 2024, Volume and Issue: 24(14), P. 6017 - 6027

Published: July 6, 2024

Six coordination polymers of Zn(II)/Cd(II)/Co(II) have been synthesized using the same N,N-donor ligand, namely, N′-(1-(pyridine-3-yl)ethylidene) isonicotinohydrazide (3-pei) and two aromatic dicarboxylates, terephthalate (tp2–) tetrabromo-terephthalate (tbtp2–). The single-crystal structural analysis reveals a one-dimensional framework interconnected by both sides dicarboxylyate linker. Notably, presence coordinated water in all compounds prompted an investigation into solvent-dependent transformations. systematic exploration transformations PXRD confirmed variations. Furthermore, band gap calculations from UV–vis data motivated for examination conductive properties compounds. conductivity study indicates that compared to Zn Cd complexes, Co-based complexes (compounds 3 6) exhibit higher conductance values 5.76 × 10–4 1.33 10–3 Sm–1, respectively, which may be applicable semiconducting materials. superior Co six are explained correlating with their respective structures.

Language: Английский

Citations

3
Chemical Sensors and Biosensors Based on Metal–Organic Frameworks (MOFs) DOI Creative Commons
Chunsheng Wu, Liping Du, Wei Chen

et al.

Chemosensors, Journal Year: 2025, Volume and Issue: 13(2), P. 72 - 72

Published: Feb. 17, 2025

Metal–organic frameworks (MOFs), also referred to as porous coordination polymers [...]

Language: Английский

Citations

0
Nitrogen-rich metal–organic framework of nickel(ii) as a highly efficient and reusable catalyst for the synthesis of cyclic carbonates at ambient pressure of CO2 DOI Creative Commons
Reza Erfani-Ghorbani, Hossein Eshghi, Ali Shiri

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(10), P. 7236 - 7247

Published: Jan. 1, 2025

Nitrogen-rich metal organic frameworks (MOFs) structures have a great potential for the chemical fixation of CO2. In this direction, we utilized highly efficient nitrogen-rich dual linker MOF nickel(ii) as heterogeneous catalyst in solvent-free CO2 into cyclic carbonates at ambient pressure. present work, nickel-MOF, Ni-ImzAdn, was synthesized from imidazole and adenine linkers under hydrothermal conditions (Imz = Imidazole Adn Adenine). The Ni-ImzAdn characterized thoroughly via various physicochemical analyses such FT-IR, SEM, EDX, EDX-mapping, XRD, ICP-OES, BET, BJH, TG-DTA, CO2-TPD, NH3-TPD. with adequate free nitrogen sites exhibit high catalytic activity cycloaddition styrene oxide (93% yield) attributed to synergistic effect strong Lewis acid base on catalyst, which were acquired by NH3-TPD respectively. addition, presented recyclable without significant loss after six reaction cycles low ion leaching (analyzed (ICP-OES)). Thermogravimetry-differential thermal analysis (TG-DTA) showed had stability up 318 °C.

Language: Английский

Citations

0
A Review on the Over-liming Detoxification of Lignocellulosic Biomass Prehydrolysate for Bioethanol Production DOI

Kar Fee Chong,

Yi Lu,

Yuke Han

et al.

Applied Biochemistry and Biotechnology, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Language: Английский

Citations

0