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. JASRAE [Internet]. 2013 Apr. 1 [cited 2025 Jun. 9];5(10):0-. Available from: https://ignited.in/index.php/jasrae/article/view/4873