Ag+ transfer across the water|1,2-dichloroethane interface facilitated by complex formation with tetraphenylborate derivatives

Caçote, M. H. M.Pereira, C. M.Tomaszewski, L.Girault, H. H.Silva, F.2005-11-072005-11-072005-11-07200410.1016/j.electacta.2003.08.008https://infoscience.epfl.ch/handle/20.500.14299/219395WOS:000187864300007The assisted transfer of silver ion, Ag+, by complexation of Ag+ with the tetrakis(4-chlorophenyl)borate (TPBCl−) anion was studied at the interface between two immiscible electrolyte solutions (ITIES). The elucidation of the interfacial mechanisms employed the cyclic voltammetry technique applied to macro and micro liquid/liquid interfaces. This procedure allowed to identify Ag+ as the species which is transferred at the liquid/liquid interface and also the formation of an 1:2 metal:ligand complex when TPBCl− is in excess. The value for the formal transfer potential of silver(I) from aqueous to 1,2-dichloroethane was evaluated and the association constant for the [Ag(TPBCl)2]− complex was determined.Ag+ transfer across the water|1,2-dichloroethane interface facilitated by complex formation with tetraphenylborate derivativestext::journal::journal article::research article