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Cathodic anion recognition

The ruthenium(II) bipyridyl moiety is also capable of functionally sensing the presence of bound anion. Electrochemical anion recognition experiments showed substantial anion induced cathodic perturbation of the ligand centered amide substituted 2,2 -bipyridine (bpy) reduction redox couple. These perturbations were in agreement with stability constant values, with 134 sensing H2PO4- in the presence of 10-fold excess of HS04 and Cl . Fluorescence emis-... [Pg.78]

Electrochemical studies in 3 2 CH2CI2/GH3CN revealed anion-induced cathodic shifts in both the porphyrin (A = 85-115 mV) and tetraferrocene oxidation (AE = 20-60 mV) waves. Atropisomers of 76 (the a,Q ,Q ,Q -atropisomer is shown) were also studied and displayed different selectivities but generally lower stability constants. This demonstrates the importance of the organometallic amide groups in the anion-recognition site and suggests that they operate cooperatively in the a,a,a,a-atropisomer. [Pg.478]

See other pages where Cathodic anion recognition is mentioned: [Pg.64]    [Pg.69]    [Pg.64]    [Pg.69]    [Pg.109]    [Pg.68]    [Pg.134]    [Pg.60]    [Pg.475]    [Pg.478]    [Pg.52]    [Pg.56]    [Pg.1008]    [Pg.47]    [Pg.1035]    [Pg.288]    [Pg.298]    [Pg.169]    [Pg.2329]    [Pg.254]    [Pg.1881]    [Pg.65]    [Pg.613]    [Pg.85]    [Pg.317]    [Pg.136]   
See also in sourсe #XX -- [ Pg.47 ]



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Anions recognition

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