Electron inner coordination shell reorganization

The first step involves the formation of the precursor complex, where the reactants maintain their identity. In the second step there is, as we will see later, reorganization of the inner coordination shells as well as of the solvation spheres of the reactants so as to obtain a nuclear configuration appropriate to the activated complex through which the precursor complex is transformed into the successor complex. The electron transfer usually occurs during the latter stages of this reorganization process. The activated complex deactivates to form the successor complex if electron transfer has occurred or to reform the precursor complex if electron transfer has not occurred. The electron distribution in the successor complex corresponds to that of the products, so that the third step is simply the dissociation of the successor complex to form the separated products. 

As large as this this value is, it corresponds to an electron exchange rate between CpMo(CO)3NCCH3+ and CpM(CO>3 of only -lO L moP s. The small value signals a large inner-shell reorganization the two sptedes differ by one coordinated molecule of solvent. 

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