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Solvatomorphic Diversity in Coordination Compounds of Copper(II) with l-Homoserine and 1,10-Phenanthroline: Syntheses, Crystal Structures and ESR Study.
Molecules
November 2024
Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102A, HR-10000 Zagreb, Croatia.
In this study, we report the syntheses, crystal structures and magnetic properties of ternary copper(II) coordination compounds with l-homoserine (l-Hhser) and 1,10-phenanthroline (phen). Six new coordination compounds were obtained: [Cu(l-hser)(HO)(phen)]SO·5HO (), [Cu(μ-l-hser)(HO)(phen)][Cu(l-hser)(HO)(phen)](SO)∙12HO (), {[Cu(μ-l-hser)(HO)(phen)][Cu(μ-l-hser)(phen)]SO·6HO} (), {[Cu(μ-l-hser)(HO)(phen)]SO·3HO} (), [Cu(l-hser)(HO)(phen)][Cu(l-hser)(CHOH)(phen)]SO·4HO () and {[Cu(l-hser)(CHOH)(phen)][Cu(μ-l-hser)(phen)]SO·5CHOH} () It was shown that slight differences in water content in the synthetic mixtures highly influence the final product, so in some cases, two or three different products were obtained. The compounds were characterized by single-crystal X-ray diffraction and ESR spectroscopy.
View Article and Find Full Text PDFCopper-based nanoparticles (NPs) are highly valued for their wide-ranging applications, with particular significance in CO reduction. However current synthesis methods encounter challenges in scalability, batch-to-batch variation, and high energy costs. In this work, we describe a novel continuous flow synthesis approach performed at room temperature to help address these issues, producing spherical, colloidally stable copper(ii) oxide (CuO) NPs.
View Article and Find Full Text PDFA "super-off" photoelectrochemical biosensor based on Cu-BTC nanozyme quenching strategy for the detection of dibutyl phthalate plasticizer.
Talanta
March 2025
Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China. Electronic address:
Ultrasensitive detection of phthalic acid (PAEs) is an extremely critical mission in environmental monitoring. We designed a "super-off" photoelectrochemical (PEC) biosensor by using MoO/BiMoO as photoanode and copper(II) benzene-1,3,5-tricarboxylate (Cu-BTC) nanozyme as highly efficient signal quencher. It was found that the PEC signal of MoO/BiMoO photoelectric material is very sensitive to the concentration of co-reactor HO.
View Article and Find Full Text PDFSelective and complementary antimicrobial and antiviral activity of silver, copper, and selenium nanoparticle suspensions in deep eutectic solvent.
Environ Res
January 2025
Faculty of Chemical Engineering and Technology, Cracow University of Technology, Cracow, Poland.
Metallic and nonmetallic nanoparticles are bioactive compounds that exhibit broad resistance to bacteria, fungi, and even viruses. In this paper, a deep eutectic solvent (DES) based on betaine, glucose, and ethylene glycol was used to obtain suspensions of silver, copper, and selenium nanoparticles. Depending on the nanoparticle precursor used, Ag, Cu, and Se nanoparticles (NPs) with an average particle size of 50-100 nm were prepared, and the properties of the products were confirmed by the STEM, XPS, DLS, and UV-VIS methods.
View Article and Find Full Text PDFWhen Metal Complexes Evolve, and a Minor Species is the Most Active: the Case of Bis(Phenanthroline)Copper in the Catalysis of Glutathione Oxidation and Hydroxyl Radical Generation.
Angew Chem Int Ed Engl
October 2024
Institut de Chimie (UMR 7177), University of Strasbourg, CNRS, 4 Rue Blaise Pascal, 67081, Strasbourg, France.
Several copper-ligands, including 1,10-phenanthroline (Phen), have been investigated for anticancer purposes based on their capacity to bind excess copper (Cu) in cancer tissues and form redox active complexes able to catalyse the formation of reactive oxygen species (ROS), ultimately leading to oxidative stress and cell death. Glutathione (GSH) is a critical compound as it is highly concentrated intracellularly and can reduce and dissociate copper(II) from the ligand forming poorly redox-active copper(I)-thiolate clusters. Here we report that Cu-Phen speciation evolves in physiologically relevant GSH concentrations.
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