Synthesis and Characterization of Novel Tetradentate Macrocycle Ligand Type N4 (1,5,8,12 - tetraazacyclotetradecan – 6,7,13,14 -tetraone)and its Complexes with Co(II), Ni(II), Cu(II) and Zn(II). DJHR [انترنت]. 25 أغسطس، 2022 [وثق 2 يوليو، 2025];1(39). موجود في: https://djhr.uodiyala.edu.iq/index.php/DJHR2022/article/view/2182