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7 hydroxyquinoline/dichloromethane
L'enllaç es desa al porta-retalls
6 resultats
Differential pulse polarographic determination of molybdenum after separation by 8-hydroxyquinoline extraction into dichloromethane.
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A polarographic investigation of several metal 8-hydroxyquinolinates in dichloromethane medium following solvent extraction has been made. From the data obtained, a selective, specific and sensitive method for the determination of molybdenum at ng ml levels has been developed involving direct
Coordination chemistry of molybdenum and tungsten--VIII. Oxomolybdenum(V) complexes of 8-hydroxyquinoline and relevance of EPR spectra to binding sites in flavoenzymes.
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MoOCl3(THF)2 (THF = tetrahydrofuran) reacts with 8-hydroxyquinoline (QH) to form [MoOCl3(QH)2], which contains neutral monodentate ligands, [MoOCl(Q)2], and anionic bidentate ligands, and the dimeric [Mo2O3(Q)4], which contains anionic bidentate ligands and both terminal and bridging oxo donors. In
Synthesis, structure and spectroscopic properties of Re(I) complexes incorporating 5-arylazo-8-hydroxyquinoline: a density functional theory/time-dependent density functional theory investigation.
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Dinuclear rhenium(I) complexes having a fac-[Re(CO)3](+) moiety of general formula fac-[Re2(CO)6(hq)2] have been synthesized in excellent yield by reacting [Re(CO)5Cl] with Hhq in a ratio of 1 : 1 in toluene in an argon atmosphere. Here hq(-) is the deprotonated form of
Kinetics of the substitution of dehydroacetic acid in tris (dehydroacetato) Fe(III) complex by 8-hydroxyquinoline, di- and tetra-hydroxyquinone.
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The ligand substitution reactions of dehydroacetic acid (Hdha) in [Fe(dha)(3)] with second ligand such as 8-hydroxyquinoline (Hquin), 1,4-dihydroxyanthraquinone (H(2)dhaq) and 1,4,5,8-tetra-hydroxyanthraquinone (H(4)thaq) were investigated spectrophotometrically by in low polarity solvents like
The determination of clioquinol in biological materials by extractive alkylation and gas-liquid chromatography.
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Clioquinol, or 5-chloro-7-iodo-8-hydroxyquinoline (Vioform), and the internal standard, 5,7-dichloro-8-hydroxyquinoline are extracted from biological material in the form of their tetrahexylammonium salts into dichloromethane, where, in the presence of a methylating agent, both clioquinol and the
Selective removal of molybdenum traces from growth media of N2-fixing bacteria.
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A new method for the selective removal of traces of molybdenum from growth media of N2-fixing bacteria (Rhodobacter capsulatus and Klebsiella pneumoniae) was developed. This method is based on the filtration of nutrient solutions through a layer of activated carbon (pulverized charcoal). The
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