Application of Two-Dimensional NMR to the Structure Determination of an Unsymmetrical Monosubstituted Bisporphyrin

Article abstract of DOI:10.1002/mrc.1260310917

The complete assignment of (1)H and (13)C data of an unsymmetrical monosubstitute bisporphyrin based on an extensive application of two-dimensional (1)H-(1)H, (1)H-(13)C and (13)C-(13)C shift spectroscopy is described.The (1)H-(1)H shift correlation through dipolar interaction (2D NOESY) was essential to prove the connection of the alkyl fragments and to distinguish protons spatially close but belonging to different units.The additive structural increments method allowed the assignment of the quatenary carbons of tolyl residues.