Showing papers on "Organomercury Compounds published in 2014"
TL;DR: In this article, the synthesis and binding properties of squaramide-coated Fe3O4 nanoparticles upon coordination with heavy metals in water are described, which feature selective binding towards Hg2+ and Pb2+ cations in the presence of other interfering heavy metals.
Abstract: The synthesis and binding properties of squaramide-coated Fe3O4 nanoparticles upon coordination with heavy metals in water are described. The nanoparticles feature selective binding towards Hg2+ and Pb2+ cations in the presence of other interfering heavy metals. The binding affinity of the nanoparticles is especially high for mercury and lead cations. The mode of action of the squaramide-coated nanoparticles differs significantly from that of previously reported nanoparticles used as Hg2+ scavengers. The selective Hg2+ sequestering capabilities displayed by the squaramide-coated nanoparticles are related to the formation of organomercury compounds. The solid state structure of the organomercury complex obtained by treatment of a di-squaramide with Hg2+ salts is described, demonstrating the mercuriation of the aryl moiety of dopamine.
18 citations
TL;DR: A series of pale yellow imine-functionalized acetyloxy(4-(arylideneamino)phenyl)mercury(II) compounds (2−7) were obtained by the reactions of arylaldehydes in equimolar ratios in absolute ethanol under reflux conditions as mentioned in this paper.
8 citations
01 Jan 2014
TL;DR: In this paper, a series of organomercury compounds containing azo group were prepared from 4-acetaminophenol and mercerized aniline derivatives; include 2-(2mercury chloride-4-X-phenyl azo)-4-acetamido phenol {X=sulfonic acid (L1), acetyl (L2), carboxy (L3), nitro (L4), and sulphamide (L5)}.
Abstract: A new series of organomercury compounds containing azo group were prepared from 4-acetaminophenol and mercerized aniline derivatives; include 2-(2mercury chloride-4-X-phenyl azo)-4-acetamido phenol {X=sulfonic acid (L1), acetyl (L2), carboxy (L3), nitro (L4) and sulphamide (L5)}. All these compounds were characterized by F.T.IR-spectroscopy, H-NMR, Micro-elemental analysis and UVVis spectroscopic techniques. The work also involves a study of acid-base properties at different pH values, the ionization and protonation constants were calculated. The complexes of L1 and L5 with Cu(II) were prepared . These complexes have been conclude after fixing the optimum conditions (time, pH and sequence of addition effects). It was found that the complexes are 1:2 (M:L) complexes and the overall stability constants were determined by the corresponding solutions method. The spectra of the complexes solutions have been studied for a range of concentrations which Lambert-Beer's law obeyed.
2 citations