CHARACTERISTIC OF THE AG(II) AG(I) SYSTEM IN THE PRESENCE OF PICOLINIC-ACID IN PROPYLENE CARBONATE/

Authors
GRZEJDZIAK A OLEJNICZAK B SHARNIN VA
Citation
A. Grzejdziak et al., CHARACTERISTIC OF THE AG(II) AG(I) SYSTEM IN THE PRESENCE OF PICOLINIC-ACID IN PROPYLENE CARBONATE/, Zurnal neorganiceskoj himii, 41(1), 1996, pp. 131-136
Citations number
17
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Zurnal neorganiceskoj himii → ACNP
ISSN journal
0044457X
Volume
41
Issue
1
Year of publication
1996
Pages
131 - 136
Database
ISI
SICI code
0044-457X(1996)41:1<131:COTAAS>2.0.ZU;2-V
Abstract
The formation constants of Ag(I) complexes with picolinic acid (Hpic): log beta(01) = 3.89, log beta(02) = 7.09 were determined by potentiom etry. Using spectroscopy, potentiometry and quantitative analysis, it was proved that in propylene carbonate an AgL(2) complex of the compos ition Ag(Hpic)(pic)(0) is formed. The resultant redox systems were des cribed and their formal potentials were determined by coulometric and voltammetric measurements: Ag(Hpic)(2)(2+) + e = Ag(Hpic)(2)(+) E(f)(0 ) = 1.517 V vs.NHE Ag(pic)(2)(0) + e = Ag(pic)(2)(-) E(f)(0) = 1.449 V vs.NHE.