ISSN:
1572-901X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary The reaction between VV and TlI was studied in 4.0 mol dm−3 HCl at an ionic strength of 4.1 mol dm−3 at 25° C. The main active species under the reaction conditions were found to be VO inf2 sup+ and TlCl inf3 sup2− for the oxidant and reductant, respectively. A probable mechanism in terms of these species is given, and follows the rate law: $$\begin{gathered} \frac{{ - d[V^V ]}}{{dt}} = \frac{{k\beta _2 \beta _5 [H^ + ]^2 [Cl^ - ]^3 [V^V ][Tl^I ]}}{{(1 + \beta _1 [H^ + ] + \beta _2 [H^ + ]^2 ) - }} \hfill \\ {\text{ }}(1 + \beta _3 [Cl^ - ] + \beta _4 [Cl^ - ]^2 + \beta _5 [Cl^ - ]^3 ) \hfill \\ \end{gathered} $$ where β 2 is the cumulative stability constant of the VO inf2 sup+ ion, formed by stepwise protonation of the VO inf2 sup+ ion, and β 5 that for the TlCl inf3 sup2− species.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00208172
