Etk. Haupt et M. Eggers, SOLUTION STRUCTURES OF PYROPHTHALONES, III - COMPLEMENTARY APPLICATION OF N-14 N-15-NMR SPECTROSCOPY TO STUDY SOLUTION STRUCTURES OF PYROPHTHALONES/, Spectroscopy letters, 31(3), 1998, pp. 521-528
The solution structures of nine pyrophthalone-type substances are dete
rmined by N-14/N-15-NMR-spectroscopy. Mostly depending on the conditio
ns (solvent, solubility, chemical nature of the compound), both isotop
es can be used complementary to obtain reliable data. Additionally, fo
r some compounds N-15 solid State NMR data are available and demonstra
te the structural identity in solution and the solid state.