Equilibrium acidity and

F. G. Bordwell, J.-P. Cheng, J. A. Harrelson Jr. Homolytic Bond Dissociation Energies in Solution from Equilibrium Acidity and Electrochemical Data. J. Am. Chem. Soc. 1988,110, 1229-1231. 

Zhang, X.-M. Bordwell, F. G. Equilibrium acidities and homolytic bond dissociation energies of the acidic C-H bonds in P-substi-tuted triphenylphosphonium cations. J. Am. Chem. Soc. 1994, 116, 968-972. 

Equilibrium acidity and rate of formation by protonation of an anion ... 

States of Matter— Liquids and Solids Solutions Reaction Types Stoichiometry Equilibrium Acids and Bases... 

Preparation and Structure. - The equilibrium acidities and homolytic bond dissociation energies of a number of alkyltriphenylphosphonium salts (1) and the oxidation potentials of the corresponding ylides have been determined. The triphenylphosphonium substituent lowers the pKa value of the a-hydrogens by approximately 25 units (142 kJmol" ) while the effect of the corresponding triphenylarsonium substituent is some 4 pKa units less. 

---