Electrochemical recognition of chloride ions by a poly [tris-(2,2′-bipyridine)ruthenium(II)] modified electrode

The electrochemical behaviour of tris-substituted bipyridineruthenium(II) complexes containing a 4,4′-amide-disubstituted bipyridine ligand has been studied in the presence and the absence of halide anions. Voltammetric studies and UV–VIS spectro-photometric measurements confirm the selective binding ability of this redox-active receptor molecule towards Cl– among the halide anions. Platinum electrodes have been modified by electropolymerization of the parent pyrrole-substituted complex. A shift in potential of the first one-electron reduction of the redox-active polymer film in the presence of Cl– has been found. In contrast, no detectable influence of I– or Br– could be observed, while the electroactivity of the film is fully transformed in the presence of F–.

[1]  A. Deronzier,et al.  Electroreductive Deposition of Films of Amphiphilic Ruthenium(II) Complexes. Their Photo- and Electropolymerization , 1994 .

[2]  A. Deronzier,et al.  Electrocatalytic hydrogenation of organic compounds on carbon electrodes modified by poly(pyrrole-bis[2,2′-bipyridyl] palladium(II) complex) films , 1992 .

[3]  S. Cosnier,et al.  Polypyridinyl complexes of ruthenium(II) having 4,4'-dicarboxy ester-2,2'-bipyridine ligands attached covalently to polypyrrole films: Reinvestigation of the polypyrrole electrochemical response in poly[tris(N-bipyridylethyl)pyrrole] ruthenium(II) films , 1990 .

[4]  I. Rubinstein,et al.  Resistance-induced peaks in cyclic voltammograms of systems that can be switched electrochemically between an insulating and conductive state , 1989 .

[5]  S. Cosnier,et al.  Electrochemical coating of a platinum electrode by a poly(pyrrole) film containing the fac-Re (2,2'-bipyridine) (CO)3Cl system. Application to electrocatalytic reduction of CO2 , 1986 .

[6]  S. Cosnier,et al.  Oxidative electropolymerization of polypyridinyl complexes of ruthenium(II)-containing pyrrole groups , 1985 .

[7]  C. M. Elliott,et al.  Electrochemical and spectral investigations of ring-substituted bipyridine complexes of ruthenium , 1982 .

[8]  Roger J. Mortimer,et al.  Cyclic voltammetry of benzo-15-crown-5 ether-vinyl-bipyridyl ligands, their ruthenium(II) complexes and bismethoxyphenyl-vinyl–bipyridyl ruthenium(II) complexes. Electrochemical polymerization studies and supporting electrolyte effects , 1993 .

[9]  P. Beer,et al.  New classes of anion receptor containing charged and neutral transition metal Lewis acidic recognition sites , 1993 .

[10]  P. Beer,et al.  Surface modification with macrocycle-containing redox-active polymers: towards the design of novel spectroelectrochemical group IA/IIA metal cation sensors , 1992 .

[11]  P. Beer.  Transition Metal and Organic Redox-Active Macrocycles Designed to Electrochemically Recognize Charged and Neutral Guest Species , 1992 .

[12]  A. Deronzier,et al.  Films of poly{pyrrole-[RuII(bpy)2Cl2]}; their transformations into films containing cis- or trans-[RuII(bpy)2(H2O)2]2+, [RuII(bpy)2(MeCN)2]2+ and [{RuIII(bpy)2(H2O)}2O]4+ complexes, application to electrocatalysis (bpy = 2,2′-bipyridine) , 1992 .

[13]  P. Beer,et al.  Syntheses, coordination, spectroscopy and electropolymerisation studies of new alkynyl and vinyl linked benzo- and aza-crown ether–bipyridyl ruthenium(II) complexes. Spectrochemical recognition of group IA/IIA metal cations , 1991 .

[14]  P. Beer,et al.  Synthesis of unsymmetrical 4,4′-disubstituted 2,2′-bipyridines containing benzo crown ether and ferrocene moieties , 1990 .

[15]  S. Cosnier,et al.  SUBSTITUTION EFFECTS ON THE ELECTROCHEMICAL BEHAVIOUR OF THE (2,2'BIPYRIDINE) TRICARBONYLCHLORORHENIUM (I) COMPLEX IN SOLUTION OR IN POLYMERIC FORM AN D THEIR RELATION TO THE CATALYTIC REDUCTION OF CARBON DIOXIDE , 1990 .

[16]  P. Beer.  Meldola Medal Lecture. Redox responsive macrocyclic receptor molecules containing transition metal redox centres , 1989 .

[17]  E. saint-Aman,et al.  Electrochemical and spectroscopic studies of inclusion complexes of some nitroxide radicals in aqueous cyclodextrin solutions , 1989 .

[18]  P. Beer,et al.  A new allosteric bis crown ether ligand containing a 2,2'-bipyridyl fragment , 1988 .

[19]  P. Beer,et al.  A new allosteric bis crown ether ligand that displays negative binding co-operativity of the diquat dication by the complexation of a transition metal guest , 1988 .