Derivatives of 2-thiohydantoin as spectrophotometric analytical reagents-II Condensation at C-5 with aromatic non-pyridine aldehydes |
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Authors: | Gonzalez M T Ariza J L |
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Affiliation: | Department of Analytical Chemistry, Faculty of Sciences and Pharmacy, University of Seville, Seville, Spain. |
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Abstract: | The synthesis, characteristics, properties and reactions with metallic ions of six aromatic derivatives of 2-thiohydantoin have been studied. The reagents exhibit two pK values in aqueous solution, and with Pd(II), Au(III), Ag(I) and Hg(I) and (II), especially with the first, form stable complexes with molar absorptivities adequate for spectrophotometric measurements. |
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