SYNTHESIS AND STRUCTURAL STUDIES OF OXO-VANADIUM (IV), CHROMIUM(III), MANGANESE(II), IRON(II), COBALT(II), NICKEL(II), AND COPPER(II) COMPLEXES WITH A NEW TETRA DENTATE SCHIFF BASE HAVING O: N: N: O DONOR SYSTEM. (2008). Al-Nahrain Journal of Science, 11(2), 10-15. https://anjs.edu.iq/index.php/anjs/article/view/1341