Positive charge transfer table, rate constants

Next we turn to the interpretation of the rate constants for electron-transfer reactions of cytochrome c that are accompanied by a net chemical change (Tables III and IV). The rate constants for the reaction of cytochrome c with both negatively charged (Fe(CN)5L3" and Ru[-(OSO30)2phen]34 ) and positively charged (Fe(bipy)2(CN)2+ and Ru(bipy)32+) complexes can be very great. 

Jorge Ayala determined the rate constants for thermal electron attachment to aliphatic halides and the halogen molecules to confirm values measured by other techniques. The electron affinities of the halogen molecules had been determined by endothermic charge transfer experiments [57-59]. In the case of the halogen molecules, the ECD results lead to the rate constant for thermal electron attachment rather than the electron affinity of the molecule. Two-dimensional Morse potentials for the anions were constructed based on these data. Freeman and Ayala searched for a nonradioactive source for the ECD. In 1975 the data on the electron affinities of atoms were summarized and correlations examined between these values and the position of the atoms in the Periodic Table [60]. A large number of the atomic electron affinities were measured by photoelectron spectroscopy [61]. A similar compilation of the electronegativities of elements was carried out. In this case some of the values were obtained from the work functions of salts [62], These results will be updated in Chapter 8. 

Table 8 Rate Constant, k t, for Charge Transfer from Primary Positive Ions of Cyclohexane to Solutes...

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