Friedel-Crafts alkylation reaction efficiently catalyzed by a di-amide functionalized Zr(IV) metal-organic framework

Ghosh, Subhrajyoti; Nagarjun, Nagarathinam; Alam, Masud; Dhakshinamoorthy, Amarajothi; Biswas, Shyam

doi:10.1016/j.mcat.2021.112007

Cited by 10 publications

(21 citation statements)

References 55 publications

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“…[18] Chemical stability of 1' in different organic solvents for 12 h and various acids for 6 h was already discussed in our previous report. [17] Here, we further verified the stability of the sensor material in the sensing medium (H 2 O) and various pH values (pH = 2 to 10) for 4 h. The PXRD patterns of the recovered material (obtained after 4 h of stirring at room temperature) remained similar to the fresh PXRD pattern of 1' (Figure S7). Retention of the PXRD patterns in the previously discussed liquid media supports the considerable chemical stability of 1' in the sensing solvent and wide range of pH.…”

Section: Physicochemical Stabilitysupporting

confidence: 68%

“…Similar synthesis and activation processes [17] as those reported by us were followed to obtain a guest free sensor compound for the sensing of CN − ion. The obtained yield of the MOF was 35 mg (0.06 mmol, 67 %).…”

Section: Methodsmentioning

confidence: 90%

“…The details of the framework structure of 1' was already provided in our previous report. [17] For better clarification, we again collected the powder X-ray diffractograms of both 1 and 1' (Figure S3). To know the structural similarity between the pristine UiO-66 and 1, we further performed Pawley method of refinement using the experimental PXRD data of 1.…”

Section: Structure Of 1'mentioning

confidence: 99%

“…[16a] Herein, we strategically synthesized a di-amide functionalized robust Zr-UiO-66 MOF. [17] Initially the MOF material displayed very weak luminescent emission intensity. But, after adding CN À ion, the emission intensity rapidly increased (~67 folds).…”

Section: Introductionmentioning

confidence: 99%

“…In various organic compounds, the abstraction of amide protons by CN − is the reason behind the switch‐on sensing in presence of CN − ion by these compounds [16a] . Herein, we strategically synthesized a di‐amide functionalized robust Zr‐UiO‐66 MOF [17] . Initially the MOF material displayed very weak luminescent emission intensity.…”

Section: Introductionmentioning

confidence: 99%

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This work contains synthesis of a di-amide linker based Zr(IV) metal-organic framework (MOF, 1) and its characterization with by PXRD, elemental analysis, FE-SEM, EDX and FT-IR analysis and application for the detection of toxic cyanide in aqueous medium. Furthermore, the physicochemical stability of the sensor was judged by the thermogravimetric analysis (TGA) and PXRD analysis. TGA curve of 1 displayed that the thermal stability of the probe was up to 230 °C. The MOF material was stable in sensing medium and in wide pH range (pH = 2-8) which were confirmed by PXRD analysis of the recovered samples. The surface area (BET) of this porous sensor was 672 m 2 /g with a pore volume of 0.36 cm 3 /g at p/p o = 0.5. Guest free form of the MOF material (1') displayed its high efficiency for the fluorescence recognition of cyanide (CN À ) with an extraordinary limit of detection of 76.4 nM in aqueous medium. Comparable recognition time (10 min) as the other available chemosensors of CN À ion and sensing of CN À using easily portable paper strips make this probe an extraordinary chemosensor for CN À ions. Together with paper strip based sensing, detection of CN À in apple seeds, various real water samples and wide ranges of pH solutions are the special features of the probe. The abstraction of amide proton by CN À ion favors "turnon" sensing, which was revealed by 1 H-NMR titration. This sensor of cyanide can also be used as luminescent switch due to its reversible nature of sensing.

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Section: Physicochemical Stabilitysupporting

confidence: 68%

Section: Methodsmentioning

confidence: 90%

Section: Structure Of 1'mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nanomolar Level Fluorogenic Detection of Cyanide with an Amide Functionalized Zirconium Metal‐Organic Framework and Its Application in Real‐World Cyanide Monitoring

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Cobalt Coordination Polymers Offering Hydrogen Bonding Cavities as Efficient Catalysts for Coupling Reactions

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Goyal,

Aashish

et al. 2023

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This work presents the synthesis and characterization of two cobalt‐based coordination polymers (CPs) prepared by using two positionally related pyridine‐2,6‐dicarboxamide fragment‐based ligands containing appended arylcarboxylic acid groups. While arylcarboxylate groups of ligands coordinate to the Co(II) ions to produce 2D CPs; the amidic N‐H groups remain free and generate large cavities lined with hydrogen bonds. Such hydrogen bonding cavities were found to reversibly adsorb molecular iodine. The Lewis acidic Co(II) ions and metal‐coordinated labile solvent molecules promoted noteworthy heterogeneous catalysis for Friedel crafts reactions as well as multicomponent condensation reactions.

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Role of metal-organic frameworks in organic reactions

El-Shahat,

Abdelhameed

2024

Metal Organic Frameworks

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Friedel-Crafts alkylation reaction efficiently catalyzed by a di-amide functionalized Zr(IV) metal-organic framework

Cited by 10 publications

References 55 publications

Nanomolar Level Fluorogenic Detection of Cyanide with an Amide Functionalized Zirconium Metal‐Organic Framework and Its Application in Real‐World Cyanide Monitoring

Nanomolar Level Fluorogenic Detection of Cyanide with an Amide Functionalized Zirconium Metal‐Organic Framework and Its Application in Real‐World Cyanide Monitoring

Cobalt Coordination Polymers Offering Hydrogen Bonding Cavities as Efficient Catalysts for Coupling Reactions

Role of metal-organic frameworks in organic reactions

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