Galvanostatic study of the electrochemical reduction of organomercury salts

Electrode reactions and electroanalysis of organomercury compounds

“…109 Nonetheless, as was shown above, this route is unlikely for many AlkHgX compounds and the electrochemical desorption typical of the H 3 O + discharge seems to be more realistic.…”

“…57) and cyclo-C 6 H 12 HgCl, 109 whereas the multistep ER mechanism was observed for other alicyclic OMC (cyclo-C 5 H 9 HgBr, cyclo-C 7 H 13 HgBr, etc.). It is (6) b Figure 3.…”

“…3 b). 109,111 This was rationalized 109 by the presence of the subsequent fast chemical reaction with the order varying from 1 to 2 with the increase in i. The Tafel plot for oxidation was completely irreversible; hence, the oxidized intermediate was not identical to RHg .…”

“…123 Similar dependences were observed for other alkylmercury salts. 109 Their analysis has shown that the second wave of RHgX electroreduction (or the second faradaic delay in chronopotentiometry) corresponds to the totally irreversible step, because no signals were observed in the anodic branch of the chronopotentiogram with the current reversal. The reaction corresponding to the first delay was characterized by electron transfer with a certain degree of reversibility (Fig 3 a).…”

“…The Tafel plots for the reaction corresponding to the first delay (1,2) in the electroreduction of PrHgOAc (a) and b-Naph-HgOAc (b), the fourth delay of oxidation of the corresponding organic calomels' [RHgads]n (3,4). 109,123 { According to certain data, 113 the ArC:CHgX salts synthesized in aqueous solutions directly in the electrochemical cell were reduced according to the Benesch mechanism. known 109 that bis(cyclohexyl)mercury is very unstable and completely decomposes after isolation from the reaction mixture.…”