Spectral Study of Pt (II), Cr (II) Polymeric Complexes of the Ligand N- Crotonyl -2- Hydroxy-Phenylazomethine. alkej [Internet]. 2013 Dec. 31 [cited 2024 Nov. 23];9(4):39-45. Available from: https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/183