Methods:
DAD: Diez, Altona, Donders: with chemical groups
HLA: Haasnoot, deLeeuw, Altona: with group electronegativity including the beta effect
HLA: Haasnoot, deLeeuw, Altona: with chemical groups
Karplus: Karplus equation: no substituent corrections
Equations and References
Colby NMR Home Page
Colby Chemistry Home Page
Colby College Chemistry, T. W. Shattuck, 1/10/2009