Bonds Homolytic versus Heterolytic Cleavage

Similarly, one may ask how A would be expected to change in the series C—F, C—Cl, C—Br, and C—I. The situation is more complicated for this series, since both 

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Another important consideration is heterolytic cleavage of the C-H bond, which does not change the oxidation state of M, versus homolytic cleavage (OA), which formally increases it by 2. 

Heterolytic versus Homolytic Bond-Cleavage Reactions... 

Heterolytic versus homolytic peroxide bond-cleavage by sperm whale myoglobin and myoglobin mutants. J. Am. Chem. Soc. 114, 9744-9749. 

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