Electrochemistry host-guest complexes

Catalysis Host-guest complexation Decrease of the activation barrier Conformational changes Electrochemistry (amperometry, potentiometry, cyclic voltammetry, impedancemetry)... 

An interesting finding in the CB7-MV2+ system is that, in clear contrast to host-guest systems involving CD hosts, the voltammetric data do not contain any indication that complex dissociation must precede any of the electron transfer processes. Furthermore, the electrochemistry of the inclusion complex is as fast—in the timescale accessible in these cyclic voltammetric experiments—as that of the free guest. This is clearly illustrated by the voltammograms depicted in Fig. 3.2, which show the comparative results of a scan-rate study on the MV2+/MV+ and CB7 MV2 + / 7 MV + redox couples. In both cases, the observed anodic and cathodic peak potentials are basically invariant as the scan rate is increased up to... 

Sun. S.-S. Lees, A.J. Self-assembly triangular and square rhenium(I) tricarbonyl complexes A comprehensive study of their preparation, electrochemistry, photophysics, photochemistry, and host-guest properties. J. Am. Chem. Soc. 2000, 722 (37). 8956-8967. 

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