In the present study, a novel N/S-containing Schiff base hydrazinecarbothiohydrazide derivative is synthesized by refluxing hydrazinecarbothiohydrazide and Z-3-(hydroxyimino) butane-2-one to yield N-((2E,3Z)-3(hydroxylamine)butan-2-ylidene) hydrazinecarbothiohydrazide (A1). Characterization of the A1 ligand and its metal complexes with Fe(III), Co(II), Cu(II), and Ni(II) was conducted using elemen...