African Journal of
Pure and Applied Chemistry

  • Abbreviation: Afr. J. Pure Appl. Chem.
  • Language: English
  • ISSN: 1996-0840
  • DOI: 10.5897/AJPAC
  • Start Year: 2007
  • Published Articles: 354

Full Length Research Paper

Structural study of pyridine-2,6-dicarbohydrazide nitrate salt

Mohammad Hakimi, Keyvan Moeini, Zahra Mardani and Sanaz Khorasani
1Chemistry Department, Payame Noor University, 19395-4697 Tehran, Iran. 2Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, South Africa.
Email: [email protected]

  •  Accepted: 17 July 2012
  •  Published: 13 October 2012


Reaction between dimethyl-2,6-pyridinedicarboxylate and anhydrous hydrazine by microwave synthesis under solvent free conditions gave pyridine-2,6-dicarbohydrazide (pdch). This compound was recrystallized in methanol at low pH condition and gave the nitrate salt of pdch. In the crystal structure of this compound, protonated pdch cations and nitrate anions are linked via N−H···Nnitrate and N−H···Onitrate hydrogen bonds into a three-dimensional network. The structure features extensive hydrogen bonding, with 13 distinct interactions. There are also weak intermolecular interactions including O···π, O···O and N−H···π.


Key words: Pyridine-2,6-dicarbohydrazide, spectral characterization, X-ray crystal structure.