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Factors affecting iron and manganese dissolution in groundwater: treatments with simultaneous oxidation and precipitation methods.
Environ Technol
January 2025
Tekirdağ Metropolitan Municipality, TESKİ, Water and Sewerage Administration, Tekirdağ, Turkey.
This study explores variations in groundwater (GW) pH, conductivity, ammonium, iron, and manganese parameters to reveal prospective interactions having an impact on the dissolved metal concentrations. To this end, bivariate and partial correlation procedures were applied to the data to obtain incisive evaluation. Besides characterisation efforts, photocatalytic iron and manganese removal experiments were also carried out with Ni-doped TiO nano-composite thin films (TFs) on real GW samples.
View Article and Find Full Text PDFHalogen-Free Wide Band Gap Polymer Donors Based on Dicyanobithiophene for Efficient Organic Solar Cells.
ACS Appl Mater Interfaces
January 2025
Conjugated polymer donors have always been one of the important components of organic solar cells (OSCs), particularly those featuring simple synthetic routes, proper energy levels, and appropriate aggregation behavior. In this work, we employed a nonfused electron-deficient building block, dicyanobithiophene (2CT), for constructing high-performance donors. Combining this with side-chain engineering, two novel halogen-free polymer donors, PB2CT-BO and PB2CT-HD, were reported.
View Article and Find Full Text PDFUltrasound-assisted and Efficient Multicomponent Synthesis of 4H-Pyran Derivatives catalyzed by LiOH.H2O in Water.
Curr Org Synth
January 2025
Laboratoire de Chimie Organique (LR17ES08), Faculté des Sciences de Sfax, University of Sfax, Route de Soukra Km 3.5, BP 1171, 3000, Sfax, Tunisia.
Aim And Objective: It is well established that 4H-pyran derivatives hold a significant position in synthetic organic chemistry due to their diverse biological and pharmacological properties. This work aims to introduce a novel synthetic pathway for highly functionalized 4H-pyran derivatives, achieved through a 1,4-Michael addition followed by a cascade cyclization. This reaction is catalyzed by LiOH·H2O under ultrasonic irradiation in water, offering an efficient and environmentally friendly approach.
View Article and Find Full Text PDFBF·EtO-promoted unconventional reactions of 2-oxoaldehyde: access to 4-amidooxazoles and β-keto amides/sulphonamides.
Org Biomol Chem
January 2025
Natural Product and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu-180001, India.
This study investigates the potential of boron trifluoride etherate (BF·OEt) to trigger unprecedented reactions of 2-oxoaldehydes with nitriles and amides/sulphonamides. In contrast to the mechanism in conventional reactions, the α-carbonyl group in 2-oxoaldehydes induces a cyclization pathway to be followed when reacting with nitriles, yielding 4-amidooxazoles. Additionally, reactions with weak nucleophiles produce β-keto amides/sulphonamides.
View Article and Find Full Text PDFN-oxide-Functionalized Bipyridines as Strong Electron-Deficient Units to Construct High-Performance n-Type Conjugated Polymers.
Adv Sci (Weinh)
January 2025
Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, No.189, Jiuhua South Road, Wuhu, Anhui, 241002, China.
Developing low-cost unipolar n-type organic thin-film transistors (OTFTs) is necessary for logic circuits. To achieve this objective, the usage of new electron-deficient building blocks with simple structure and easy synthetic route is desirable. Among all electron-deficient building units, N-oxide-functionalized bipyridines can be prepared through a simple oxidized transformation of bipyridines.
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