220582-68-3Relevant articles and documents
Intramolecular hydrogen bonding studies for a series of dipurinyl-2,6- pyridinedicarboxamides
Crisp, Geoffrey T.,Jiang, Yu-Lin
, p. 549 - 560 (1999)
A series of potential receptor molecules based on the dipurinyl-2,6- pyridinedicarboxamide motif has been prepared and the intramolecular hydrogen bonding characterised by 1H NMR and FT-IR spectroscopies. The hydrogen bonding gives rise to a preferential planar, cis conformation for the molecules. The planar nature of the unit also gives rise to π-π stacking as shown by 1H NMR dilution experiments.