Title of article :
Synthesis, crystal structure and Hirshfeld surface analysis of bis{2-[(pyridin-2-yl)amino]pyridinium} tetracyanonickelate(II)
Author/Authors :
Setifi, Zouaoui aboratoire de Chimie - , Ingénierie Moléculaire et Nanostructures (LCIMN) - Université Ferhat Abbas Sétif 1, Algeria , Ferjani, Hela Chemistry Department, College of Science - IMSIU (Imam Mohammad Ibn Saud Islamic University), Kingdom of Saudi Arabia , Setifi, Fatima Laboratoire de Chimie - Ingénierie Moléculaire et Nanostructures (LCIMN) - Université Ferhat Abbas Sétif 1 Algeria , Ezzine, Safa Department of Chemistry - College of Sciences - King Khalid University, Abha, Saudi Arabia , Al-Douh, Mohammed Hadi Chemistry Department - Faculty of Science, Hadhramout University - Mukalla, Hadhramout, Yemen
Abstract :
In the title molecular salt, (C10H10N3)2[Ni(CN)4], the dihedral angle between the pyridine rings in the cation is 1.92 (13)° and the complete anion is generated by a crystallographic centre of symmetry. An intramolecular N—H⋯N hydrogen bond occurs in the cation, which closes an S(6) ring. In the crystal, the components are linked by N—H⋯N and weak C—H⋯N hydrogen bonds, which generate chains propagating in the [101] direction. Weak aromatic π–π stacking interactions are also observed. A Hirshfeld surface analysis and two-dimensional fingerprint plots indicate that the most important contact types in the crystal packing are N⋯H/H⋯N, C⋯H/H⋯C and H⋯H with contributions of 37.2, 28.3 and 21.9%, respectively.
Keywords :
crystal structure , crystal structure , Hirshfeld surface analysis , crystal structure , tetracyanonickelate , N-(pyridin-2-yl)pyridinium-2-amine , hydrogen bonding
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
