Study of an AB System within the ~1H NMR Spectrum of a Maleamic Acid:Application of Chemical Exchange between Acid-Base Conjugates

摘要

When two nuclei,for example protons,are either magnetically equivalent or different but strongly coupled (DELTA v/J < 10),a first-order analysis cannot explain the NMR spectrum.In these cases,it is necessary to formulate the spin Hamiltonian and to solve the Schrodinger equation.