Consorzio Interuniversitario Reattività Chimica e Catalisi

In2S3/TiO2 heterostructures for enhanced photocatalytic nitrogen fixation under ambient conditions

Salvatore Impemba, Pasqualmorica Antico, Luca di Matteo, Lorenzo Simeone et autres

The development of sustainable routes for ammonia production under ambient conditions is a critical challenge, driven by the high energy demand and carbon footprint of the Haber-Bosch process. Photocatalytic N 2 fixation has emerged as a promising alternative; however, conventional TiO 2 …

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A New Sustainable Approach to Antibiotic Resistance: Development of bis‐Quaternary Ammonium Salts From 2,4,6‐Trichloro‐1,3,5‐Triazine

Rachele Rampazzo, Arianna De Luca, Manuela Facchin, Patrizio Raffa et autres

The development of highly effective antibiotics and antimicrobials over the centuries has greatly improved human life. However, the irresponsible use of these substances and their release into the environment have led to the emergence of resistant microorganisms. Quaternary ammonium salts (QAS), due …

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Bio compatibilizers from brewer’s spent grain for biocomposite production

Gioele Foltran, Silvia Conca, Valentina Beghetto

This study demonstrates that the lipid fraction of brewer's spent grain (BSG), traditionally overlooked in polymer composite applications, can be chemically converted into bio-based compatibilizers while the lignocellulosic fraction simultaneously serves as reinforcement. Two model bio-additives, 6- O -linoleyl-α- D -glucopyranosyl-β- D …

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Tunable molecular weight poly(3-hydroxybutyrate) via aluminium catalysis: from plasticizers to ultra-flexible matrices

Esther Mula Herrero, Valentina Sessini, Muhammad Ishaq, Giuseppe Santoriello et autres

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Triazine-Mediated Zero-Length Crosslinking for Sustainable Leather Tanning

Valentina Beghetto, Eleonora Fabris, Francesco De Laurentiis, Marco Nogarole et autres

-methylmorpholine (NMM), which stabilizes collagen through a zero-length crosslinking mechanism. Reactive triazine intermediates, generated in situ, selectively activate collagen carboxyl groups, forming active esters that subsequently react with amine functionalities to form amide bonds. Unlike conventional tanning systems, no metals or toxic …

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Boosting Peroxide Reactivity: New Mn(II) Chelidamate Catalysts for Efficient Low-Temperature Bleaching

Immacolata Manco, Vincenzo Langellotti, Maria Elena Cucciolito, Carlo De Luca et autres

Abstract The development of efficient catalytic systems for low-temperature bleaching is a key challenge for reducing energy consumption in laundry processes. In this work, five manganese(II) complexes derived from chelidamic acid were designed, synthesized, and evaluated as bleaching catalysts for the activation …

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Mechanochemistry-Accessed MOF Polymorphism Revealed by an Integrated 3DED/DFT-Assisted Rietveld Analysis

Giorgio Cagossi, Andrea Daolio, Dario Giovanardi, Iryna Andrusenko et autres

A combined 3DED, plane-wave DFT, and Rietveld refinement workflow uncovers the first example of interlayer-twisting polymorphism in a pillared MOF. While the parent material, PUM198, a Zn-based mixed-ligand MOF, was previously synthesized under solvothermal conditions, mechanochemistry selectively affords a new polymorph, PUM198-m. …

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Catalytic Deuteration of Amines in Water (D 2 O) With Ir, Ru, and Rh Pentamethylcyclopentadienyl Dioxime Complexes

Francesco Taglieri, Maria Edith Casacchia, Anna Pisani, Assunta Cortese et autres

A new family of pentamethylcyclopentadienyl (C 5 Me 5 , Cp*) iridium(III), rhodium(III), and ruthenium(III) complexes bearing bidentate 1,2‐dioxime ligands was developed as a promising platform for aqueous‐phase catalysis. A modular series of piano‐stool complexes of general formula [MX(η 5 ‐Cp*)(κ 2 …

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Gold Nanoparticles Embedded in Poly(2,6-dimethyl-1,4-phenylene) Oxide Matrix: A Selective and Reusable Catalyst for Nitroarene Reduction via Polymer-Controlled Reaction Pathway

Giusy Ruta, Salvatore Impemba, Enrico Berretti, Alessia Giannattasio et autres

Gold nanoparticles (AuNPs) supported by a polymer matrix of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) were investigated as a catalyst for the selective reduction of nitroarenes (NAs) to aniline derivatives (ANs), using sodium borohydride (NaBH4) as a reductant. A systematic investigation of reaction parameters, including …

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Pt(II) Rollover Complexes with Poor-Donor Bipyridines: Synthesis, Reactivity, and Preliminary Antimicrobial Evaluation

Antonio Zucca, Matteo Murineddu, Fabrizio Ortu, Yu Liu et autres

Abstract This study describes the synthesis, characterization, and preliminary antimicrobial investigation of a series of rollover platinum complexes derived from 6-chloro-2,2′-bipyridine (bpyCl) and 6-bromo-2,2′-bipyridine (bpyBr) ligands. The electron-withdrawing halogen substituents in the 6-position significantly influence the coordination behavior of the ligands, favoring …

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Bio-based cyclic poly(2,5-furylene vinylene) from 2,5-Diformylfuran via McMurry coupling and its palladium nanoparticle hybrids for electrocatalytic applications

Salvatore Impemba, Valentina Agnese Crispino, Marco Bellini, Tailor Machado Peruzzolo et autres

Cyclic poly(2,5-furylene vinylene) (cPFV) is a novel cyclic furan-based π-conjugated oligomer synthesized through the McMurry reductive homocoupling of 2,5-diformylfuran (DFF), a biosourced derivative of 5-hydroxymethylfurfural (HMF). Owing to the renewable origin of HMF from carbohydrate or lignocellulosic feedstocks, DFF acts as a …

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Pt(II) Rollover Cyclometalated Complexes Supported by 2,2’-Bipyridine N -Oxide: Synthesis, Characterization, and Biological Evaluation

Antonio Zucca, Giacomo Senzacqua, Antonio Canu, Fabrizio Ortu et autres

Abstract Four platinum(II) rollover cyclometalated complexes derived from 2,2’-bipyridine N-oxide (bpyNO), [Pt(bpyNO-H)(DMSO)Me] (1a), [Pt(bpyNO-H)(PPh3)Me] (2a), [Pt(bpyNO-H)(DMSO)Cl] (3a), and [Pt(bpyNO-H)(PPh3)Cl] (4a), were synthesized, characterized, and evaluated for their antimicrobial and cytotoxic activities. The electron-poor nature of bpyNO enables rollover C–H bond activation at …

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