Extrathermody namic relationship

The literature in this area is extensive and some of the concepts and symbolism may be transitory. This chapter reviews the field at a level and with a coverage adequate for the experimentalist to use the standard relationships and to follow their use in the mechanistic literature. Research on the meaning of the extrathermody-namic relationships themselves is beyond our needs the interested reader can explore these ideas further in the references cited. Grunwald has reviewed the early history of LFERs. 

The Hammett linear free energy relationship is a widely used extrathermody-namic relationship for organic reactions. Although developed specifically for dissociation constants, in principle the method is applicable to any organic reaction. 

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