Browsing Chemistry by Title
Now showing items 53-72 of 271
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The crystal structure of fac-tricarbonyl((pyridin-2-yl)methanamino-κ2N,N′)-((pyridin-2-yl)methanamino-κN)rhenium(I) nitrate,C15H16O3N4Re
(De gruyter, 2023)Abstract: C15H16O3N4Re, triclinic, P1̄ (no. 2), a = 7.4939(2) Å, b = 10.1316(2) Å, c = 13.8351(3) Å, α = 103.453(2)°, β = 101.992(2)°, γ = 107.880(2)°, V = 926.98(4) Å3, Z = 2, Rgt(F) = 0.0341, wRref(F2) = 0.0861, T = 150 K. -
The crystal structure of fac-tricarbonyl((pyridin-2-yl)methanamino-κ2N,N′)-((pyridin-2-yl)methanamino-κN)rhenium(I) nitrate,C15H16O3N4Re
(De gruyter, 2023)ac-[Re(N,N) (CO)3(H2O)] (N,N = (2-picolylamine- κ2N,N') (20 mg, 0.051 mmol) was dissolved in methanol (5 mL) and 2-picolylamine (5.36 mL, 0.051 mmol) dissolved in (10 mL) methanol was added. The solution was then stirred ... -
The crystal structure of fac-tricarbonyl(bis(3,5-dimethyl-4H-pyrazole)-κ1 N)-((nitrato)-κ1 O)-rhenium(I) - 3,5-dimethyl-4H-pyrazole(1/1), C18H23N7O6Re
(Walter de Gruyter GmbH, 2024)C18H23N7O6Re, triclinic, P 1 (no. 2), a = 10.527(2) Å, b = 10.849(2) Å, c = 11.215(2) Å, α = 72.798(2)°, β = 69.767(2)°, γ= 87.496(10)°, V = 1145.52(4) Å3, Z = 2, R gt(F) = 0.0273, wR ref(F 2) = 0.0727, T = 150(2) K. -
Crystal structure of saposin B reveals a dimeric shell for lipid binding
(National Academy of Sciences, 2003)Saposin B is a small, nonenzymatic glycosphingolipid activator protein required for the breakdown of cerebroside sulfates (sulfatides) within the lysosome. The protein can extract target lipids from membranes, forming ... -
Crystal structure, Hirshfeld surface analysis and DFT studies of 5-(adamantan-1-yl)-3-[(4- chlorobenzyl)sulfanyl]-4-methyl4H-1,2,4-triazole, a potential 11βHSD1 inhibitor
(Scientific Reports, 2019)5-(Adamantan-1-yl)-3-[(4-chlorobenzyl)sulfanyl]-4-methyl-4H-1,2,4-triazole (4) was identifed as a potential 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) inhibitor and this paper describes the in-depth structural ... -
Crystal structure, hirshfeld surface analysis and dft studies of 5-(adamantan-1-yl)-3-[(4-chlorobenzyl)sulfanyl]-4-methyl-4h-1,2,4-triazole, a potential 11β-hsd1 inhibitor
(Scientific Reports, 2019)5-(Adamantan-1-yl)-3-[(4-chlorobenzyl)sulfanyl]-4-methyl-4H-1,2,4-triazole (4) was identified as a potential 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) inhibitor and this paper describes the in-depth structural ... -
Cytotoxic, cytostatic and HIV-1 PR inhibitory activities of the soft coral litophyton arboreum
(MDPI, 2013)Bioassay-guided fractionation using different chromatographic and spectroscopic techniques in the analysis of the Red Sea soft coral Litophyton arboreum led to the isolation of nine compounds; sarcophytol M (1), alismol ... -
Desalination and seawater quality at Green Point, Cape Town: A study on the effects of marine sewage outfalls
(Academy of Science of South Africa (ASSAf), 2017)This paper presents our collection methods, laboratory protocols and findings in respect of sewage pollution affecting seawater and marine organisms in Table Bay, Cape Town, South Africa, then moves to consider ... -
Determination of anthracene on Ag-Au alloy nanoparticles/overoxidized-polypyrrole composite modified glassy carbon electrodes
(MDPI, 2010)A novel electrochemical sensor for the detection of anthracene was prepared by modifying a glassy carbon electrode (GCE) with over-oxidized polypyrrole (PPyox) and Ag-Au (1:3) bimetallic nanoparticles (Ag-AuNPs). The ... -
Determination of binding constants for the complexes between heavy metal ions and cucurbit[n]uril
(John Wiley and Sons Inc, 2024)One of the major concerns worldwide is the rapid increase in water pollution with hazardous heavy metals. The Cucurbit[n]uril (CB[n]) structure provides an inner hydrophobic cavity accessible through two electrostatically ... -
Determination of paracetamol on electrochemically reduced graphene oxide–antimony nanocomposite modified pencil graphite electrode using adsorptive stripping differential pulse voltammetry
(MDPI, 2022)A simple, highly sensitive, accurate, and low-cost electrochemical sensor was developed for the determination of over-the-counter painkiller, paracetamol (PC). The enhanced sensing capabilities of the developed sensor ... -
Development of adsorptive materials for selective removal of toxic metals in wastewater: A review
(MDPI, 2022)Removal of toxic metals is essential to achieving sustainability in wastewater purification. The achievement of efficient treatment at a low cost can be seriously challenging. Adsorption methods have been successfully ... -
Development of Unsupported Ru and Ni Based Oxides with Enhanced Performance for the Oxygen Evolution Reaction in Acidic Media
(Springer, 2023)The high cost of catalyst materials suitable for the oxygen evolution reaction (OER) in polymer electrolyte membrane water electrolyzers (PEMWE) is still a major hurdle that needs overcoming before commercial PEMWE can ... -
Dichlorido-[(2-diphenylphosphino-benzylidene)-2-methylphenylen-amine]palladium( II) acetonitrile monosolvate
(International Union of Crystallography, 2013)The title imino–phosphine compound, [PdCl2(C26H22NP)] - CH3CN, was prepared by reaction of N-[2-(diphenylphosphanyl) benzylidene]-2-methylaniline with dichlorido(cycloocta- 1,5-diene)palladium(II) in dry CH2Cl2. The ... -
Dichlorido-[2-(2,6-diethylphenyl)iminomethylquinoline-N,N’]palladium(II) acetonitrile monosolvate
(International Union of Crystallography, 2012)The title complex, [PdCl2(C20H20N2)] CH3CN, was synthesized by the reaction of 2-[(2,6-diethylphenyl)iminomethyl]quinoline with dichlorido(cycloocta-1,5-diene)palladium(II) in dry CH2Cl2. The PdII ion is coordinated by ... -
Dry Gongronema latifolium aqueous extract mediated silver nanoparticles by one-step in-situ biosynthesis for antibacterial activities
(Elsevier, 2021)In-situ biosynthesis of silver nanoparticles for antibacterial activities doped with aqueous extract of dry Gongronema Latifolium (DGL) is presented in this work. The absorbance was determined using a UV-Visible analysis ... -
Dual-functional phosphoric acid-loaded covalent organic framework for PEMFC self-humidification: Optimization on membrane electrode assembly
(Elsevier Ltd, 2023)A novel enhanced membrane electrode assembly (MEA) was successfully developed by incorporating a phosphoric acid (PA)-loaded Schiff base network (SNW)-type covalent organic framework (COF) as an additive to the catalyst ... -
The effect of a warm electron beam on slow electron-acoustic solitons
(AIP Publishing, 2018)The effects of the inclusion of finite drift speed of a warm electron component on the existence of arbitrary amplitude slow electron-acoustic solitons are investigated in a model with ions and cool, warm, and hot electrons. ... -
Effect of calcination time on the physicochemical properties and photocatalytic performance of carbon and nitrogen co-doped TiO2 nanoparticles
(MDPI, 2020)The application of highly active nano catalysts in advanced oxidation processes (AOPs) improves the production of non-selective hydroxyl radicals and co-oxidants for complete remediation of polluted water. This study ... -
Effect of growth temperature on the structural, optical and luminescence properties of cadmium telluride nanoparticles
(Springer, 2018)Cadmium telluride (CdTe) has been successfully prepared by a simple wet chemical process at different reaction temperatures. Temperature is one parameter that thermodynamically plays an important role in controlling the ...