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Showing 1 to 20 of 35 for “"8-Hydroxyquinoline"”.
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In silico-guided design, synthesis and antimicrobial activity of piperazine-linked 8-hydroxyquinoline-isatin hybrids
… Monomers selected for this study include 8-hydroxyquinoline and isatin. There exist reports on the versatility of the 8-hydroxyquinoline ring and the antimicrobial, anticancer, and antifungal activity ascribed to its derivatives, while the isatin scaffold known for rendering high hit rates, …
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Application of IR and NMR spectroscopy to certain complexes of 8-hydroxyquinoline and 8-aminoquinoline
… of twenty-one transition metal complexes of 8-hydroxyquinoline over the range 700 - 50 cm⁻¹ are discussed in relation to their known or inferred structures. The complexes are of three types: (a) the bis(aquo) complexes of the first row transition metal(II) ions, [M(ox)₂(H₂O)₂] (M =Mn, Fe, Co, …
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The inhibition of germination and growth of Clostridium botulinum 62A by BHA, BHT, TBHQ and 8-Hydroxyquinoline
… (BHT), tertiary-butyl hydroquinone (TBHQ) and 8- hydroxyquinoline (8-0HQ) upon cell growth and spore germination of Clostridium botulinum type 62A was studied using a complex liquid medium. The inhibition of spore germination was further investigated using a defined liquid medium containing …
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The establishment of the oligomeric purity and molecular structure for n-methylated bis(8-hydroxyquinoline) zinc (n = 0, 2, 4, and 5)
Znq2 has been studied as electroluminescent material. However, no correlation of the structure of Znq2 to resulting device properties has been established. Most reports of Znq2 as an electroluminescent material have not considered the impact of higher order molecular structures on the device …
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Complexes of iron (III) with derivatives of 8-quinolinol
The organic ligands 5- and 7- methyl-8-hydroxyquinoline have been synthesised and shown to form green, water soluble, 1:1 complexes with iron(III) and thus to possess the same composition as the complexes with 8-hydroxyquinoline and 2-methyl-8-hydroxyquinoline previously reported. Thermodynamic …
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I. Exact Crystallographic Orientation Studies With Weissenberg and Precession Goniometers. Ii. Applications of Goniometric Analyses to the Crystal Structure Determinations of Hydrazinosulfuric Acid, Barium Hydrazinosulfate Monohydrate, Diphenyl Phthalate, Dehydroquinolizidine Perchlorate and 8-Hydroxyquinoline
Made available in DSpace on 2014-12-05T19:36:10Z (GMT). No. of bitstreams: 1 0011546.pdf: 7682358 bytes, checksum: e7ab91ce23e3aff4f07c3e51f8ceeff8 (MD5) Previous issue date: 1955
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Speciation and phytotoxicity of mono- and polynuclear aluminum in dilute hydroxy-aluminum solutions
… acid, triammonium salt), and 8-hydroxyquinoline methods were evaluated and compared for their ability to yield estimates of the mononuclear fraction, ƒ<sub>m</sub>, in Al solutions of varying basicity. Reactions of ferron or aluminon with Al were kinetically modeled as two …
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Modification of nanoparticle surfaces for emulsion stabilization and encapsulation of active molecules for anti-corrosive coatings
… a mixture of the corrosion inhibitor 8-hydroxyquinoline (8-HQ) and styrene with silica nanoparticles a highly stable o/w emulsion can be obtained in a narrow pH window. The amphoteric character of 8-HQ enables a pH dependent electrostatic interaction with silica nanoparticles, which can …
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Further investigation of mental tris-quinolates using spectroscopy
Structure of aluminum tris-8-hydroxyquinoline (Alq3) and other metal tris-quinolates (Mq3) in vapor deposited films in organic light emitting devices (OLEDs) is not well established due to the possibility of existing two geometric isomeric forms, meridianal and facial. We present a comparative …
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Novel patterning techniques for manufacturing organic and nanostructured electronics
… devices (OLEDs) based on aluminum tris(8-hydroxyquinoline) (Alq3), and the fabrication of pentacene based organic field effect transistors (OFETs) with narrow channel (15 gm) and asymmetric silver/gold contacts. Patterned printing of both organic and metal films is demonstrated, with the …
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Isolation, reconstitution, and molecular cloning of the manganese-containing superoxide dismutase from Deinococcus radiodurans
… hydrochloride, and the metal ion chelator 8-hydroxyquinoline. The denatured apoprotein was renatured upon removal of the denaturant by dialysis. The renatured apoprotein assumed a gross conformation similar to the native enzyme as indicated by fluorescence spectroscopy. The renatured …
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Biospeciation, Interaction with Biomolecules and Mechanism of Action of Potential Cu and V Drugs
… thiosemicarbazones, hydrazones, and 8-hydroxyquinoline, was employed to explore the structural diversity of these systems. The interactions of these metal complexes with proteins such as myoglobin, ubiquitin, lysozyme, cytochrome c, ribonuclease A, and serum albumin were analyzed by …
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Hormone Induced Magnesium Transfer in Fat Cell Plasma Membranes: A Mechanism for Effecting Changes in Cellular Metabolism
… This technique made use of the ligand, 8-hydroxyquinoline-5-sulfonic acid (8-OH-Q) which fluoresces in the presence of magnesium and was used to demonstrate epinephrine stimulation of magnesium uptake. The ligand was incorporated into plasma membrane vesicles prepared from rat epididymal …
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Au sujet du rôle des couches intercalaires et des mouvements moléculaires au sein de dispositifs électroluminescents organiques
… biphenyl-4,4’-diamine (TPD) et du tris-(8- hydroxyquinoline) d’aluminium (Alq3), utilisé comme couches de transport de trous et d’électrons respectivement. Comme ces couches organiques sont semblables aux couches inorganiques, ces couches déposées une sur l’autre de façon adjacente …
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The Determination of Trace Metals by High Performance Liquid Chromatography with Photometric Detection
… of fluorescent metal detection with 8-hydroxyquinoline-5-sulphonic acid and photometric detection with a water soluble derivative of dithizone is shown.
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Sur la réversibilité de l'électroluminescence et du photovoltaïsme au sein des dispositifs organiques ITO/TPD/Alq3/A1
… biphenyl4,4’-diamine (TPD) et du tris-(8-hydroxyquinoline) d'aluminium (Alq3 ), utilisés comme couches transporteuses de trous et d’électrons, respectivement. Le principe de fonctionnement de ces dispositifs réfère à la théorie de la jonction PN inorganique. Une comparaison théorique avec …
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Evaluation of electrothermal vapourization as a method of sample introduction for the ICP-MS and determination of trace levels of titanium, gallium and indium in the central Pacific gyre
… to improve the existing chelating resin, a TSK 8-hydroxyquinoline, has afforded a 30-fold improvement of resin capacity. Chelating capacity obtained for this resin is 34 ± 3 μmole Cu(II) / g resin. A new resin was synthesized by coupling 5-amino 8-hydroxyquinoline to a new solid support, …
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DETERMINATION OF CO AND MN IN MARINE WATERS USING FLOW INJECTION WITH CHEMILUMINESCENCE DETECTION
… clean-up techniques and the synthesis of an 8- hydroxyquinoline resin used for in-line matrix elimination and preconcentration. The resin is also characterised in terms of its chelating ability for the transition metals and the earth alkaline metals. A new column design is also presented. …
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The Electrical and Mechanical Study of the Flexible Organic Light Emitting Diodes
… PET device. The Young’s moduli of the Tris-(8-hydroxyquinoline) aluminum (Alq3) and N,N'-Bis(naphthalen-1-yl)-N,N'-bis(phenyl)benzidine (NPB) are measured using the nanoindentation technique. Although the substrate effect cannot be completely filtered out due to the thin film thickness and the …
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