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

• Type: Article in International Scientific Journal
• Date: 2004

Authors

Cacote, MHM (Author) Other; Pereira, CM (Author) FCUP; Tomaszewski, L (Author) Other; Girault, HH (Author) Other; Silva, F (Author) FCUP

Journal

Title: Electrochimica Acta

Vol. 49

Pages: 263-270

ISSN: 0013-4686

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 29 Citations

Scopus - 27 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-000-BYN

DOI: 10.1016/j.electacta.2003.08.008

Abstract (EN): The 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8