RAMACHANDRAMOORTHY, T., PAUL RAJ, A., SIVASANKAR, V., & RAJAM, S. (2010). Synthesis and Characterization of Nickel(II) Complexes with Azide Ion and Pyridine Derivatives as Ligands. Asian Journal of Chemistry, 19(6), 4415–4419. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/19936