Potential effects, compartmentalized systems

Although the electrostatic potential on the surface of the polyelectrolyte effectively prevents the diffusional back electron transfer, it is unable to retard the very fast charge recombination of a geminate ion pair formed in the primary process within the photochemical cage. Compartmentalization of a photoactive chromophore in the microphase structure of the amphiphilic polyelectrolyte provides a separated donor-acceptor system, in which the charge recombination is effectively suppressed. Thus, with a compartmentalized system, it is possible to achieve efficient charge separation. 

Section III focuses on problems of system topology and documents, using results obtained from a series of model calculations, how the separate influences of system size, dimensionality, and reaction pathway(s) can be disentangled, and the principal effects on reaction efficiency quantified. With these factors clarified. Section IV demonstrates how these trends and correlations change when a multipolar potential is operative between reaction partners, both confined to a compartmentalized system. More general diffusion-reaction systems are described in Section V, where effects arising from nonrandom distributions of reaction centers and, secondly, the influence of multipolar potentials in influencing catalytic processes in crystalline and semiamorphous zeolites are explored. The conclusions drawn from these studies are then summarized in Section VI. 

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