Smart Nano-Hybrid Metal-Organic Frameworks: Revolutionizing Advancements, Applications, and Challenges in Biomedical Therapeutics and Diagnostics

Hybrid Advances, Год журнала: 2025, Номер unknown, С. 100406 - 100406

Опубликована: Фев. 1, 2025

Язык: Английский

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Purification of Xe and SF₆ through Adaptive Contractions in a Flexible Metal–Organic Framework

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

Overcoming the trade-off effects between adsorption capacity, selectivity, and enthalpy of an adsorbent is very important but remains a huge challenge. Here, we report flexible metal-organic framework (FJI-H36); it can selectively adsorb Xe from Xe/Kr mixtures with high capacity low enthalpy. Structural analyses show that such excellent performances come adaptive contraction framework; pore shrinkage enhance interactions adsorbed offset some heats. For SF6/N2 mixtures, FJI-H36 also performance SF6 through contraction, resulting in both selectivity This not only provides new for purification Xe/Kr/SF6 offers potential solution to overcome trade-offs among specific adsorbent.

Язык: Английский

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Selective and Efficient Detoxification of Sulfur Mustard Gas Analogues with H₂O₂ Using Bioinspired Mo and W Dithiolene Catalysts

ACS Catalysis, Год журнала: 2024, Номер 14(12), С. 9323 - 9327

Опубликована: Июнь 5, 2024

Efficient and selective decomposition of chemical warfare agents (CWAs) is required to cope with threats from accidental or intentional releases stockpiles. One the most stockpiled CWAs sulfur mustard (SM) gas. The effective way detoxify SM oxidize thioether functionality its benign sulfoxide (SMO) state. However, overoxidation corresponding sulfone (SMO2), itself a potent toxin, should be avoided. Thus, catalysts for detoxification must precisely tuned promote sluggish oxidation while avoiding SMO SMO2. In this study, Mo W dithiolene catalysts, [MO2(dithiolene)2]2– (M = W), inspired by active site structures oxotransferase enzymes such as DMSO reductase were used research analogue, 2-chloroethyl ethyl sulfide (CEES), aqueous H2O2 an oxidant. Under optimized conditions, [WO2(mnt)2]2– [MoO2(bdt)2]2– (mnt maleonitriledithiolate, bdt 1,2-benzenedithiolate) found CEES CEESO without CEESO2 in little 5–15 min catalyst loadings low 0.015 mol %. (pre)catalyst was also reusable measurable loss activity. Experimental computational studies indicate involvement η2-peroxo species, [M(O)(η2-O2)(dithiolene)2]2–, oxidants formed situ. Overall, bioinspired study are shown promising candidates developing convenient, inexpensive, efficient, gas technologies.

Язык: Английский

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Size and Shape Effect of Countercations on Depolymerization and Water Oxidation Catalysis of Cyano-Bridged Coordination Polymers

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 11, 2025

A cyano-bridged coordination polymer (CP), K{CoII1.5[FeII(CN)6]} {(K)Co-Fe}, insoluble in water was successfully solubilized by countercation exchange with Me4N+ ions. On the one hand, resultant powder remained after NH4+ or Et4N+ Powder X-ray diffraction measurements indicated that solubility closely related to crystal structures of obtained exchange. The penetration a an appropriate size into Co-Fe framework resulted solubilization depolymerization. Countercation RMe3N+ ions (R = Et, n-Pr, n-Bu), which have orthogonal projection similar ion, framework. other n-HexMe3N+ hardly penetrating provided due longer alkyl chain. CPs exhibited higher catalytic activity for oxidation.

Язык: Английский

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Naphthaleneimide Functionalized NU-1000 as An Efficient Donor-Acceptor Photo-catalyst for the Visible-Light-Driven Oxidation of Benzylamine Coupling

Microporous and Mesoporous Materials, Год журнала: 2025, Номер unknown, С. 113724 - 113724

Опубликована: Июнь 1, 2025

Язык: Английский

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Selective and efficient detoxification of sulfur mustard gas analogues with H2O2 using bioinspired Mo and W dithiolene catalysts

Опубликована: Май 3, 2024

Efficient and selective decomposition of chemical warfare agents (CWAs) is immensely important to cope with threats from accidental or intentional releases stockpiles. One the most stockpiled CWAs sulfur mustard (SM) gas. The effective way detoxify SM oxidize thioether functionality its benign sulfoxide (SMO) state. However, overoxidation corresponding sulfone (SMO2), itself a potent toxin, should be avoided. Thus, cat-alysts for detoxification must precisely tuned promote sluggish oxidation while avoiding overoxi-dation SMO SMO2. In this study, Mo W dithiolene catalysts, [MO2(dithiolene)2]2- (M = W), inspired by active site structures oxotransferase enzymes such as DMSO reductase were used catalysts research analogue, 2-chloroethyl ethyl sulfide (CEES), aqueous H2O2 green oxidant. Under optimized conditions, [WO2(mnt)2]2- [MoO2(bdt)2]2- (mnt maleonitriledithiolate, bdt 1,2-benzenedithiolate) found CEES CEESO without CEESO2 in little 5-15 min catalyst loadings low 0.015 mol%. was also reusable measurable loss activity. Experimental computational studies indicate involvement 𝜂2-peroxo species, [M(O)(𝜂2-O2)(dithiolene)2]2-, oxidants formed situ. Overall, bioinspired study are shown promising candidates developing convenient, inexpensive, efficient, gas technologies.

Язык: Английский

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Catalytically Active Site Mapping Realized through Energy Transfer Modeling

Angewandte Chemie International Edition, Год журнала: 2024, Номер 64(4)

Опубликована: Окт. 4, 2024

The demands of a sustainable chemical industry are driving force for the development heterogeneous catalytic platforms exhibiting facile catalyst recovery, recycling, and resilience to diverse reaction conditions. Homogeneous-to-heterogeneous transitions can be realized through integration efficient homogeneous catalysts within porous matrices. Herein, we offer versatile approach understanding how guest distribution evolution impact performance host-guest by implementing resonance energy transfer (RET) concept using fluorescent model systems mimicking steric constraints targeted catalysts. Using RET-based methodology, mapped condition-dependent (re)distribution support on example modular matrices such as metal-organic frameworks (MOFs). Furthermore, correlate RET results performed with two MOF-encapsulated used promote CO2 hydrogenation ring-closing metathesis. Guests incorporated aperture-opening encapsulation, redistribution is not observed under practical conditions, showcasing pathway advance recyclability in case platforms. These studies represent first generalizable mapping systems, providing foundation predicting tailoring integrated into various supports.

Язык: Английский

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Amorphous Mo_aZr_0.8O_x-500 catalyzed selective oxidation of sulfides to sulfoxides mediated by ¹O₂ from direct heterolytic cleavage of H₂O₂

Inorganic Chemistry Frontiers, Год журнала: 2024, Номер 11(23), С. 8411 - 8420

Опубликована: Янв. 1, 2024

Sulfoxides, a class of pharmaceuticals and fine chemicals significant importance, are readily peroxidized to sulfones in the H 2 O system.

Язык: Английский

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