Cross-interface bimolecular reactions

The second case of a bimolecular reaction occurring between two uncharged reactants A and B requires further extensions of the pseudophase model. The simplest of the possible expansions involves bimolecular reactions not involving reactions crossing the interface between the pseudophases, in other words, reactant A in the aqueous pseudophase reacts only with reactant B in the aqueous pseudophase while reactant A in the micellar pseudophase reacts only with reactant B in the micellar pseudophase (Scheme 6). 

For a bimolecular reaction, the reaction between a reactant (R ) in the micellar pseudophase and the other reactant (S ) in the aqueous pseudophase does not occur i.e., the cross-interface reaction such as that between and or R and does not take place. 

If a bimolecular reaction between S and R involves cross-interface reaction, i.e., the reaction occurs in violation of assumption 6, then the PP model can lead to one of the five probable reaction mechanisms described in the following text. 

Bimolecular Reactions That Do Not Involve Cross-Interface Reactions... 

Almost all the micellar-mediated bimolecular reactions so far reported involve parallel reaction steps that constitute reactions occurring simultaneously in both aqueous phase and micellar pseudophase as expressed in Scheme 3.8. As described earlier, there are only a few reports that show an apparent failure of bimolecular reactions to obey the reaction in Scheme 3.8. However, this failure is attributed to various factors, including the possibility of cross-interface reaction. ... 

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