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We report the synthesis and structural characterization of [UO(2)(ReO(4))(DPPMO(2))(2)][ReO(4)] and [UO(2)(Cl)(DPPMO(2))(2)][Cl] (where DPPMO(2) = bis(diphenylphosphino)methane dioxide). In both complexes, the linear uranyl dication is coordinated to two bidentate DPPMO(2) ligands in the equatorial plane with one coordinated and one non-coordinated anion (either perrhenate or chloride). We have also prepared the pertechnetate analogue, and, through (31)P and (99)Tc NMR, we have shown that the cation, [UO(2)(TcO(4))(DPPMO(2))(2)](+), is stable in solution.
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http://dx.doi.org/10.1021/ic049588r | DOI Listing |
Environ Geochem Health
September 2025
Department of Chemistry, Government Arts College(A), Salem, Tamil Nadu, 636007, India.
A CoO/AgMoO/CeOternary nanocomposites photocatalyst was successfully synthesized through a straightforward ethanol-assisted chemical method. Comprehensive characterization of its structural and optical properties was conducted using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-Vis diffuse reflectance spectroscopy (UV-DRS), and photoluminescence (PL) analysis. XRD analysis confirmed the presence of CoO, AgMoO and CeO in the ternary composite sample.
View Article and Find Full Text PDFJ Org Chem
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Key Laboratory of Flexible Optoelectronic Materials and Technology, Ministry of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan 430056, P. R. China.
We previously reported that the attempt to synthesize tetramethoxyindolo[3,2-]indole led to an undefined product. Now, it is confirmed that its instability is derived from the one-electron transfer from the tetramethoxyindolo[3,2-]indole derivatives to halogenated solvents under ultraviolet-visible (UV-vis) light irradiation, forming a stable indolo[3,2-]indole radical cation while causing the carbon-halogen (C-X, X = Cl, Br, I) bond scission.
View Article and Find Full Text PDFBiochim Biophys Acta Biomembr
September 2025
Department of Chemistry, University of Toronto, Canada; Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road North, Mississauga, Ontario, L5L 1C6, Canada. Electronic address:
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State Key Laboratory of Phytochemistry and Natural Medicines, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; Jiangxi Provincial Key Laboratory for Pharmacodynamic Material Basis of Traditional Chinese Medicine, Ganjiang Chinese Medicine Innovation Center, Na
Ethnopharmacological Relevance: The traditional Chinese medicine Psoralea corylifolia L. (PCL) has been clinically used to treat diarrhea and gastrointestinal inflammatory disorders. G protein-coupled receptor 84 (GPR84) is emerging as a potential target for inflammatory bowel disease (IBD).
View Article and Find Full Text PDFSci Total Environ
September 2025
Laboratorio de Materiales para Análisis Químico (MAT4LL), Departamento de Química, Unidad Departamental de Química Analítica, Universidad de La Laguna, Tenerife, Spain.
The 2021-eruption of Tajogaite (La Palma, Canary Islands) was associated with the formation of large amounts of respirable PM aerosols (smaller than 10 μm) that triggered air quality crisis and lockdowns for ∼35,000 persons. This study aims to quantify the contribution of the aerosol formation mechanisms to the volcanic PM concentrations. During the eruption and post-eruption, we monitored trace gases (SO, HF, HCl and NO), and the size distribution and chemical composition of falling-tephra and PM aerosols.
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