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- W2000785972 abstract "A study involving (a) the structural chemistry of Hg(II) complexes with thiol containing ligands, (b) the stability constants for such systems and (c) the relative efficacy of 29 compounds as antidotes for mercury poisoning has been carried out to determine the structural requirements for Hg(II) antidotes. This leads to the suggestion that instances in which two thiol groups on the same chelate molecule are simultaneously bonded to the same Hg(II) species in a complex, water soluble or otherwise, are not found and Hg(II) species bearing two sulfur donors generally have a bond angle of 180° or so between these two bonds. It was hypothesized, from this, that chelating agents bearing a single sulfhydryl group might be almost as effective as mercury antidotes as those bearing two groups. Data on the stability constants and antidotal effectiveness are presented for such structures, but in general molecules which do not have the potential ability to chelate are also inferior as antidotes. From the data assembled it would appear that the presence of a second donor group is required. Because of the lability of the mercury-thiol bond, this second site seems necessary to provide the required kinetic stability for the complex. In the case of dithiols, the mercury may move back and forth from one sulfur donor site to another but may not (and possibily cannot) bind firmly and simultaneously to both donor sites." @default.
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- W2000785972 title "Structural requirements for Hg(II) antidotes" @default.
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- W2000785972 doi "https://doi.org/10.1016/0022-1902(81)80058-9" @default.
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