Proton Affinity of Hydridic Hydrogens

The concept of proton affinity is well known to play a very important role in organic chemistry. In fact, this concept permits us to express quantitatively the proton-accepting strength of organic bases. It is significant that the proton affinity arises from the nature of a proton donor. 

It is generally accepted that the two most important factors affecting the structure and energies of classical hydrogen bonds are the acidity of donors and the 

TABLE 8.3. Proton Affinities (kj/moi) Characterizing the CH3OCH3 and BH3N(CH3)3 Molecules at Hydrogen and Dihydrogen Bonding to Linear (a) and Nonlinear (b) Proton Donors 

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