Abstract

The reactions of silver(I) with isocyclam, scorpiand,trans-Me2[14]anN4, cis-Me6[14]anN4,(N-Me)Me2py[14]anN4 and py[12]anN4 were investigated.The stability constant of the Ag(I) complex with py[12]anN4 was determined. The aqueous solutions of the silver(II) complexes with the 14-membered ligands were obtained, and characterized by means of UV-VIS and CVA measurements. The Ag2+ ion does not form a five-coordinate complex with scorpiand. The formal potentials of the Ag(II)/Ag(I) system in the presence of scorpiand, trans-Me2[14]anN4, cis-Me6[14]anN4 and(N-Me)Me2py[14]anN4 were determined. The mechanism is also proposedfor the electroreduction of the silver(II) complexes with these compounds on a platinum electrode in aqueous solution.

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