The crystal structure of three salts of 4-nitrophthalic acid with pyridine (1), 2-amino pyridine (2) and with 8-aminoquinoline (3) are determined. The role of weak and strong hydrogen bonding in crystal packing is ascertained. It is observed that the orientation of the 4-nitrophthalic acid in the lattice is governed by the hydrogen bonding; either sheet-like structure or helical chain can be constructed based on the amine under consideration. © 2008 Elsevier B.V. All rights reserved.
Karmakar, A., Baruah, A. M., & Baruah, J. B. (2008). Different spatial arrangements in the 4-nitrophthalic acid salts. Journal of Molecular Structure, 891(1–3), 254–257. https://doi.org/10.1016/j.molstruc.2008.03.042