Results 231 to 240 of about 23,792 (254)
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Spectrochimica Acta Part A: Molecular Spectroscopy, 1975
Abstract The thermodynamic dissociation constants for the deprotonation and dissociation steps of 8-hydroxyquinoline, 5-chloro-8-hydroxyquinoline and 5-nitro-8-hydroxyquinoline in the temperature range 20–60°C have been determined by the spectrophotometric method.
C. Klofutar, Š. Paljk, F. Krašovec
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Abstract The thermodynamic dissociation constants for the deprotonation and dissociation steps of 8-hydroxyquinoline, 5-chloro-8-hydroxyquinoline and 5-nitro-8-hydroxyquinoline in the temperature range 20–60°C have been determined by the spectrophotometric method.
C. Klofutar, Š. Paljk, F. Krašovec
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Photodegradation of 8-hydroxyquinoline aluminum
Synthetic Metals, 2001The photodegradation of 8-hydroxyquinoline aluminum (Alq 3 ) films under UV irradiation was studied by means of X-ray photoelectron spectroscopy, nano-second fluorescence spectrophotometer, and photoluminescence spectra. Degradation in photoluminescent properties was significant in an air environment.
Gui Yu +3 more
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[Allergies to 8-hydroxyquinoline derivatives].
Dermatosen in Beruf und Umwelt. Occupation and environment, 1988Evaluation of our standardized test results from 1972 to 1983 indicated Vioform allergies in 1.2% of all cases and Sterosan allergies in 1.1%. Our results are within the spectrum found in the literature for Vioform between 0.3 and 5.1% and for Sterosan between 0.3 and 3.7%.
D, Hutzler, I, Pevny
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On 8-Hydroxyquinoline-Zinc Oxide Incompatibility
Dermatology, 1974Although it is well known that zinc ions and the oxines form practically insoluble chelates, oxines are commonly used in combination with zinc oxide in ointment form. 13 patients who had shown allergic responses after epicutaneous testing with oxines were tested with iodochloroxine and certain combinations of it with starch, titanium dioxide and zinc ...
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Chelating resins from 8-hydroxyquinoline
Analytica Chimica Acta, 1974Abstract The preparation and properties of chelating resins containing the oxine group have been studied. Condensation resins with the optimal swelling properties were made by control of the water content during curing. The resins have high capacity and selectivity, and a fast exchange rate resulted from the incorporation of a proportion of sulphonic
J.R. Parrish, R. Stevenson
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8-Hydroxyquinolines in metallosupramolecular chemistry
Coordination Chemistry Reviews, 20088-Hydroxyquinoline is a versatile ligand in coordination chemistry which was mainly used for analytical purposes. Due to the special properties of some of its complexes it experienced a renaissance in synthetic coordination chemistry. This review describes recent applications of 8-hydroxyquinoline derivatives to obtain new supramolecular sensors ...
Markus Albrecht +2 more
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Journal of Applied Physics, 2006
The evolution of the interface electronic structure of a sandwich structure involving aluminum oxide and tris(8-hydroxyquinoline) aluminum (Alq), i.e., (Alq∕AlOx∕Alq), has been investigated with photoemission spectroscopy. Strong chemical reactions have been observed due to aluminum deposition onto the Alq substrate.
Huanjun Ding +4 more
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The evolution of the interface electronic structure of a sandwich structure involving aluminum oxide and tris(8-hydroxyquinoline) aluminum (Alq), i.e., (Alq∕AlOx∕Alq), has been investigated with photoemission spectroscopy. Strong chemical reactions have been observed due to aluminum deposition onto the Alq substrate.
Huanjun Ding +4 more
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Spectrophotometric determination of halogenated 8-hydroxyquinoline derivatives
Talanta, 1984A spectrophotometric method is proposed for the determination of 8-hydroxyquinoline and three of its iodinated derivatives: 5-chloro-7-iodo-8-hydroxyquinoline (clioquinol), 5,7-di-iodo-8-hydroxy-quinoline (iodoquinol) and 8-hydroxy-7-iodo-quinolone-5-sulphonic acid (chinoform).
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8‐Hydroxyquinolinate of Quadripositive Praseodymium
Journal of the Chinese Chemical Society, 1955AbstractGreenish yellow Pr(C9H6NO)4·H2O has been prepared in the same manner as the 8‐hydroxyquinolinate of quadripositive neodymium(1). The quadrivalence of praseodymium has been confirmed bromometrically, 15 bromine atoms being needed to brominate one molecule of the substance.Yellow Pr(C9H6NO)3 · H2O has also been prepared by the addition of ...
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