Design of redox systems for the selective transport of electrons across liquid membranes: nickel (II, III) tetraaza macrocyclic complexes

G De Santis, M Di Casa, M Mariani…

Index: De Santis, Giancarlo; Di Casa, Michela; Mariani, Mario; Seghi, Barbara; Fabbrizzi, Luigi Journal of the American Chemical Society, 1989 , vol. 111, # 7 p. 2422 - 2427

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Citation Number: 25

Abstract

Abstract: The complexes NiLX2 (L= N-cetylcyclam; X= CI, C104) have been synthesized to be used as carriers for the transport of electrons across a CH2CI2 bulk liquid membrane, through the Ni"/Ni"'redox change. Two-phase (water/dichloromethane) experiments have shown that aqueous peroxydisulfate ion is able to oxidize Ni" LCI2, but not Ni1'L (C104) 2, due to the very large difference of the Ni'llvll redox potentials. On the other hand, the [Ni"' ...