3 years ago

Cleavage of Hg–C Bonds of Organomercurials Induced by ImOHSe via Two Distinct Pathways

Cleavage of Hg–C Bonds of Organomercurials Induced by ImOHSe via Two Distinct Pathways
Mainak Banerjee, Gouriprasanna Roy
ImOHSe, having an N−CH2CH2OH substituent, has the remarkable ability to demethylate highly toxic methylmercury by two distinct pathways. Under basic conditions, ImOHSe converts methylmercury into biologically inert HgSe nanoparticles and Me2Hg (pathway I). However, under neutral conditions, ImOHSe facilitates the cleavage of the Hg−C bond of MeHgCl at room temperature, leading to the formation of (ImOHSe)2HgCl2 and Me2Hg (pathway II). In the presence of excess ImOHSe, the toxic Me2Hg further decomposes to [(ImOHSe)4Hg]2+ and CH4, under acidic conditions.

Publisher URL: http://dx.doi.org/10.1021/acs.inorgchem.7b01301

DOI: 10.1021/acs.inorgchem.7b01301

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