Simultaneous binding, cations recognizing

Compound [22] forms thermodynamically stable complexes with Ba2+ and K+. The binding of anions by free [22] is relatively weak the metal cation therefore cooperates in the anion complexation process. Electrochemical studies using CV and SWV have shown that [22] is capable of electrochemi-cally recognizing both cations and anions simultaneously and readers are urged to consult the original publication for a detailed explanation of this effect. 

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