Synthesis & Characterisation of Ni (Ii) Chelates of Diethylmesoxalate Phenylhydrazone and Their Electron Releasing As Well As Electron Withdrawing Substituent in Ammoniacal Medium: Synthesis and Characterization of Ni (II) Complexes with Electron-Releasing and Electron-Withdrawing Substituents. (2013). Journal of Advances and Scholarly Researches in Allied Education, 5(10), 0-0. https://ignited.in/jasrae/article/view/4873