Acid−Base Equilibria in Nonpolar Media. 2.<sup>1</sup> Self-Consistent Basicity Scale in THF Solution Ranging from 2-Methoxypyridine to EtP<sub>1</sub>(pyrr) Phosphazene
作者:Toomas Rodima、Ivari Kaljurand、Aino Pihl、Vahur Mäemets、Ivo Leito、Ilmar A. Koppel
DOI:10.1021/jo016185p
日期:2002.3.1
Relative ion-pair basicities Delta(pK)(ip) of 25 substituted aryl and alkyl iminophosphoranes (phosphazenes) and 20 other N-bases (various pyridines, amines, amidines) have been measured in THF medium using the UV-Vis and/or (13)C NMR methods. The Delta(pK)(ip) values were corrected for ion pairing using the Fuoss equation to obtain relative ionic basicities Delta(pK)(alpha). Based on the measurements