4-Pyridylnicotinamide (4-PNA), also known as N-(pyridin-4-yl)nicotinamide, is a kinked dipodal dipyridine which was originally developed for use in chemotherapy.[1] As in its isomer3-pyridylnicotinamide, the nitrogen atoms on its pyridine rings can donate their electron lone pairs to metal cations, allowing it to bridge metal centers and act as a bidentateligand in coordination polymers.[2][3][4][5] It is synthesized through the reaction of nicotinoyl chloride and 4-aminopyridine.[1]
References
^ abGardner, T. S.; Wenis, E.; Lee, J. (1954). "The Synthesis of Compounds for the Chemotherapy of Tuberculosis. Iv. The Amide Function". The Journal of Organic Chemistry. 19 (5): 753. doi:10.1021/jo01370a009.
^Krishna Kumar, D. (2009). "Exploring the effect of chain length of bridging ligands in coordination complexes and polymers derived from mixed ligand systems of pyridylnicotinamides and dicarboxylates". Inorganica Chimica Acta. 362 (6): 1767–2013. doi:10.1016/j.ica.2008.08.033.
^Kumar, D. K.; Das, A.; Dastidar, P. (2006). "One-Dimensional Chains, Two-Dimensional Corrugated Sheets Having a Cross-Linked Helix in Metal−Organic Frameworks: Exploring Hydrogen-Bond Capable Backbones and Ligating Topologies in Mixed Ligand Systems". Crystal Growth & Design. 6 (8): 1903. doi:10.1021/cg0600344.
^Kumar, D. K.; Das, A.; Dastidar, P. (2006). "Exploring hydrogen-bond capable backbone and ligating topologies: Co(II) coordination polymers derived from mixed ligand systems". Journal of Molecular Structure. 796 (1–3): 139–145. Bibcode:2006JMoSt.796..139K. doi:10.1016/j.molstruc.2006.02.033.