Standard heterolytic bond dissociation

If a bond dissociation occurs so that one of the species becomes a cation and the other becomes an anion, then the energy of the reaction is termed a standard heterolytic bond dissociation energy ... [Pg.18]

The acidity of a substrate AH in the gas phase is measured using the standard enthalpy change A//°cid for the heterolytic bond dissociation ... [Pg.382]

Another important type of isodesmic reaction compares acid (or base) strength to that of a closely-related standard compound, for example, the basicity of trimethylamine relative to that of ammonia as a standard. This differs fundamentally from absolute acid (or base) strength comparisons, which are heterolytic bond dissociations and which significantly alter overall bonding. ... [Pg.237]

The standard enthalpy change for the reverse of equation 1 is the heterolytic bond dissociation energy for BH (equal by convention to the proton affinity of B). The homolytic bond dissociation energy for BH", i.e. the standard enthalpy change for reaction 5, has been obtained [17,18] for some bases from the proton affinity and the... [Pg.33]

The standard Gibbs free enthalpy change, A G", for the heterolytic dissociation of a P-H bond acoordlng to... [Pg.199]

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